Use runnerSize property instead of runnerImages for better compatibility

Co-authored-by: henrymercer <14129055+henrymercer@users.noreply.github.com>

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

@@ -1,7 +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"]
+runnerSize: "slim"
 steps:
   - name: Add a file to the database cluster directory
     run: |

pr-checks/checks/config-input.yml

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

pr-checks/checks/language-aliases.yml

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

pr-checks/sync.py

@@ -76,25 +76,21 @@ for file in sorted((this_dir / 'checks').glob('*.yml')):
         if version == "latest":
             raise ValueError('Did not recognize "version: latest". Did you mean "version: linked"?')
 
-        # 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"]
-
+        # Determine runner size (default is "latest")
+        # "default" maps to "latest" for the runner image name
+        runnerSize = checkSpecification.get('runnerSize', 'default')
+        actualRunnerSize = 'latest' if runnerSize == 'default' else runnerSize
+        
+        # Build runner images based on runner size and operating systems
         operatingSystems = checkSpecification.get('operatingSystems', ["ubuntu"])
-
+        
         for operatingSystem in operatingSystems:
-            runnerImagesForOs = [image for image in runnerImages if image.startswith(operatingSystem)]
-
-            for runnerImage in runnerImagesForOs:
-                matrix.append({
-                    'os': runnerImage,
-                    'version': version
-                })
+            # Construct the runner image name: {os}-{size}
+            runnerImage = f"{operatingSystem}-{actualRunnerSize}"
+            matrix.append({
+                'os': runnerImage,
+                'version': version
+            })
 
         useAllPlatformBundle = "false" # Default to false
         if checkSpecification.get('useAllPlatformBundle'):