fix(ci): standardize runner configuration for CI jobs

.github/workflows/ci.yml

@@ -118,7 +118,7 @@ jobs:
         name: Format & Lint
         needs: [changes]
         if: needs.changes.outputs.rust_changed == 'true'
-        runs-on: ${{ github.event_name == 'push' && fromJSON('["self-hosted","Linux","X64","lxc-ci"]') || 'ubuntu-latest' }}
+        runs-on: blacksmith-2vcpu-ubuntu-2404
         timeout-minutes: 20
         steps:
             - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
@@ -138,7 +138,7 @@ jobs:
         name: Test
         needs: [changes]
         if: needs.changes.outputs.rust_changed == 'true'
-        runs-on: ${{ github.event_name == 'push' && fromJSON('["self-hosted","Linux","X64","lxc-ci"]') || 'ubuntu-latest' }}
+        runs-on: blacksmith-2vcpu-ubuntu-240
         timeout-minutes: 30
         steps:
             - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
@@ -153,7 +153,7 @@ jobs:
         name: Build (Smoke)
         needs: [changes]
         if: needs.changes.outputs.rust_changed == 'true'
-        runs-on: ${{ github.event_name == 'push' && fromJSON('["self-hosted","Linux","X64","lxc-ci"]') || 'ubuntu-latest' }}
+        runs-on: blacksmith-2vcpu-ubuntu-240
         timeout-minutes: 20
 
         steps:
@@ -187,7 +187,7 @@ jobs:
         name: Docs Quality
         needs: [changes]
         if: needs.changes.outputs.docs_changed == 'true'
-        runs-on: ${{ github.event_name == 'push' && fromJSON('["self-hosted","Linux","X64","lxc-ci"]') || 'ubuntu-latest' }}
+        runs-on: blacksmith-2vcpu-ubuntu-240
         timeout-minutes: 15
         steps:
             - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4

.github/workflows/workflow-sanity.yml

@@ -1,65 +1,65 @@
 name: Workflow Sanity
 
 on:
-  pull_request:
-    paths:
-      - ".github/workflows/**"
-      - ".github/*.yml"
-      - ".github/*.yaml"
-  push:
-    branches: [main]
-    paths:
-      - ".github/workflows/**"
-      - ".github/*.yml"
-      - ".github/*.yaml"
+    pull_request:
+        paths:
+            - ".github/workflows/**"
+            - ".github/*.yml"
+            - ".github/*.yaml"
+    push:
+        branches: [main]
+        paths:
+            - ".github/workflows/**"
+            - ".github/*.yml"
+            - ".github/*.yaml"
 
 concurrency:
-  group: workflow-sanity-${{ github.event.pull_request.number || github.sha }}
-  cancel-in-progress: true
+    group: workflow-sanity-${{ github.event.pull_request.number || github.sha }}
+    cancel-in-progress: true
 
 permissions:
-  contents: read
+    contents: read
 
 jobs:
-  no-tabs:
-    runs-on: ${{ github.event_name == 'push' && fromJSON('["self-hosted","Linux","X64","lxc-ci"]') || 'ubuntu-latest' }}
-    timeout-minutes: 10
-    steps:
-      - name: Checkout
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+    no-tabs:
+        runs-on: blacksmith-2vcpu-ubuntu-240
+        timeout-minutes: 10
+        steps:
+            - name: Checkout
+              uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
-      - name: Fail on tabs in workflow files
-        shell: bash
-        run: |
-          set -euo pipefail
-          python - <<'PY'
-          from __future__ import annotations
+            - name: Fail on tabs in workflow files
+              shell: bash
+              run: |
+                  set -euo pipefail
+                  python - <<'PY'
+                  from __future__ import annotations
 
-          import pathlib
-          import sys
+                  import pathlib
+                  import sys
 
-          root = pathlib.Path(".github/workflows")
-          bad: list[str] = []
-          for path in sorted(root.rglob("*.yml")):
-            if b"\t" in path.read_bytes():
-              bad.append(str(path))
-          for path in sorted(root.rglob("*.yaml")):
-            if b"\t" in path.read_bytes():
-              bad.append(str(path))
+                  root = pathlib.Path(".github/workflows")
+                  bad: list[str] = []
+                  for path in sorted(root.rglob("*.yml")):
+                    if b"\t" in path.read_bytes():
+                      bad.append(str(path))
+                  for path in sorted(root.rglob("*.yaml")):
+                    if b"\t" in path.read_bytes():
+                      bad.append(str(path))
 
-          if bad:
-            print("Tabs found in workflow file(s):")
-            for path in bad:
-              print(f"- {path}")
-            sys.exit(1)
-          PY
+                  if bad:
+                    print("Tabs found in workflow file(s):")
+                    for path in bad:
+                      print(f"- {path}")
+                    sys.exit(1)
+                  PY
 
-  actionlint:
-    runs-on: ${{ github.event_name == 'push' && fromJSON('["self-hosted","Linux","X64","lxc-ci"]') || 'ubuntu-latest' }}
-    timeout-minutes: 10
-    steps:
-      - name: Checkout
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+    actionlint:
+        runs-on: blacksmith-2vcpu-ubuntu-240
+        timeout-minutes: 10
+        steps:
+            - name: Checkout
+              uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
-      - name: Lint GitHub workflows
-        uses: rhysd/actionlint@393031adb9afb225ee52ae2ccd7a5af5525e03e8 # v1.7.11
+            - name: Lint GitHub workflows
+              uses: rhysd/actionlint@393031adb9afb225ee52ae2ccd7a5af5525e03e8 # v1.7.11