chore(version-bridge): Removed highest-version shortcut, and made the map configurable

Signed-off-by: Gustaf Räntilä <g.rantila@gmail.com>

.changeset/early-jars-laugh.md

@@ -1,5 +1,5 @@
 ---
-'@backstage/version-bridge': minor
+'@backstage/version-bridge': patch
 ---
 
 Debuggable/inspectable versioned values

packages/version-bridge/src/lib/VersionedValue.ts

@@ -41,18 +41,8 @@ export function createVersionedValueMap<
       return versions[version];
     },
   };
-  Object.defineProperty(versionedValue, '$value', {
-    configurable: false,
-    enumerable: true,
-    get() {
-      const highest = Object.keys(versions)
-        .map(v => parseInt(v, 10))
-        .sort((a, b) => b - a)[0];
-      return versions[highest];
-    },
-  });
   Object.defineProperty(versionedValue, '$map', {
-    configurable: false,
+    configurable: true,
     enumerable: true,
     get() {
       return versions;