Set checkPresence in diff-range data extension

This commit updates the diff-range data extension to use the new
checkPresence field being introduced in CodeQL CLI 2.21.0, so that
diff-informed analysis no longer fails when a query pack does not have
the restrictAlertsTo extensible predicate.

lib/analyze.js

@@ -358,6 +358,7 @@ extensions:
   - addsTo:
       pack: codeql/util
       extensible: restrictAlertsTo
+      checkPresence: false
     data:
 `;
     let data = ranges

lib/feature-flags.js

@@ -96,8 +96,7 @@ exports.featureConfig = {
     [Feature.DiffInformedQueries]: {
         defaultValue: false,
         envVar: "CODEQL_ACTION_DIFF_INFORMED_QUERIES",
-        minimumVersion: undefined,
-        toolsFeature: tools_features_1.ToolsFeature.DatabaseInterpretResultsSupportsSarifRunProperty,
+        minimumVersion: "2.21.0",
     },
     [Feature.DisableCsharpBuildless]: {
         defaultValue: false,