fix: add pull request # to cache key for GH PR fetch

Previously it only had the org + repo, which meant that different PRs would collide.

src/main/java/org/eclipsefoundation/git/eca/service/impl/DefaultGithubApplicationService.java

@@ -119,8 +119,11 @@ public class DefaultGithubApplicationService implements GithubApplicationService
     @Override
     public Optional<PullRequest> getPullRequest(String installationId, String org, String repoName, Integer pullRequest) {
         String fullRepoName = GithubValidationHelper.getFullRepoName(org, repoName);
+        // create param map to better handle multiple PRs from a single repo in short time span
+        MultivaluedMap<String, String> params = new MultivaluedHashMap<>();
+        params.add(GitEcaParameterNames.PULL_REQUEST_NUMBER_RAW, Integer.toString(pullRequest));
         return cache
-                .get(fullRepoName, new MultivaluedHashMap<>(), PullRequest.class,
+                .get(fullRepoName, params, PullRequest.class,
                         () -> gh.getPullRequest(jwt.getGhBearerString(installationId), apiVersion, org, repoName, pullRequest))
                 .getData();
     }