Updates a stale Javadoc link to getValues.
Current link goes to AbstractSkyFunctionEnvironment#getValues which is uncommented. SkyFunction.Environment#getValues contains the relevant information about GroupedList.
@@ -123,7 +123,7 @@ class SkyFunctionEnvironment extends AbstractSkyFunctionEnvironment {
* The grouped list of values requested during this build as dependencies. On a subsequent build,
* if this value is dirty, all deps in the same dependency group can be checked in parallel for
* changes. In other words, if dep1 and dep2 are in the same group, then dep1 will be checked in
- * parallel with dep2. See {@link #getValues} for more.
+ * parallel with dep2. See {@link SkyFunction.Environment#getValues} for more.
*/
private final GroupedListHelper<SkyKey> newlyRequestedDeps = new GroupedListHelper<>();
