Add OverlayAnalysisMatchCodeqlVersion feature flag

src/feature-flags.ts

@@ -72,6 +72,13 @@ export enum Feature {
   OverlayAnalysisGo = "overlay_analysis_go",
   OverlayAnalysisJava = "overlay_analysis_java",
   OverlayAnalysisJavascript = "overlay_analysis_javascript",
+  /**
+   * When set, chooses the default CodeQL CLI version as the highest version that is both enabled by
+   * feature flags and present as an overlay-base database in the Actions cache for the configured
+   * languages. Falls back to the highest feature flagged version if no intersecting overlay-base
+   * database exists in the cache.
+   */
+  OverlayAnalysisMatchCodeqlVersion = "overlay_analysis_match_codeql_version",
   OverlayAnalysisPython = "overlay_analysis_python",
   /**
    * Controls whether lower disk space requirements are used for overlay hardware checks.
@@ -277,6 +284,11 @@ export const featureConfig = {
     envVar: "CODEQL_ACTION_OVERLAY_ANALYSIS_DISABLE_TRAP_CACHING",
     minimumVersion: undefined,
   },
+  [Feature.OverlayAnalysisMatchCodeqlVersion]: {
+    defaultValue: false,
+    envVar: "CODEQL_ACTION_OVERLAY_ANALYSIS_MATCH_CODEQL_VERSION",
+    minimumVersion: undefined,
+  },
   [Feature.OverlayAnalysisResourceChecksV2]: {
     defaultValue: false,
     envVar: "CODEQL_ACTION_OVERLAY_ANALYSIS_RESOURCE_CHECKS_V2",