Add ubuntu-slim runner support for lightweight workflows

Co-authored-by: henrymercer <[email protected]>

Author: Copilot

.github/workflows/__cleanup-db-cluster-dir.yml

@@ -15,7 +15,7 @@ defaults:
 
 jobs:
   check-expected-release-files:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
 
     permissions:
       contents: read

.github/workflows/__config-input.yml

@@ -16,7 +16,7 @@ permissions:
 jobs:
   sizeup:
     name: Label PR with size
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
 
     steps:
       - name: Run sizeup

.github/workflows/__language-aliases.yml

@@ -1,6 +1,7 @@
 name: "Clean up database cluster directory"
 description: "The database cluster directory is cleaned up if it is not empty."
 versions: ["linked"]
+runnerImages: ["ubuntu-slim"]
 steps:
   - name: Add a file to the database cluster directory
     run: |

.github/workflows/check-expected-release-files.yml

@@ -2,6 +2,7 @@ name: "Config input"
 description: "Tests specifying configuration using the config input"
 installNode: true
 versions: ["linked"]
+runnerImages: ["ubuntu-slim"]
 steps:
   - name: Copy queries into workspace
     run: |

.github/workflows/label-pr-size.yml

@@ -1,6 +1,7 @@
 name: "Language aliases"
 description: "Tests that language aliases are resolved correctly"
 versions: ["linked"]
+runnerImages: ["ubuntu-slim"]
 steps:
   - uses: ./../action/init
     with:

pr-checks/checks/cleanup-db-cluster-dir.yml

@@ -76,7 +76,15 @@ def writeHeader(checkStream):
         if version == "latest":
             raise ValueError('Did not recognize "version: latest". Did you mean "version: linked"?')
 
-        runnerImages = ["ubuntu-latest", "macos-latest", "windows-latest"]
+        # Check if a specific runner image is specified in the check
+        customRunnerImages = checkSpecification.get('runnerImages')
+        if customRunnerImages:
+            # Use custom runner images specified in the check
+            runnerImages = customRunnerImages
+        else:
+            # Use default runner images based on operating systems
+            runnerImages = ["ubuntu-latest", "macos-latest", "windows-latest"]
+
         operatingSystems = checkSpecification.get('operatingSystems', ["ubuntu"])
 
         for operatingSystem in operatingSystems: