Update actions workflows and add clang format check for PRs (#1418)

* Add clang-format workflow for pull request checks

* Modify push paths in nightly workflow

Updated paths for push event to include all files except specified ones.

* Update paths for nightly-server workflow triggers

* Modify paths for pull request triggers

Update pull request workflow to include specific paths.

* Tidy up clang-format installation in workflow

.github/workflows/pull-request.yml

@@ -4,10 +4,12 @@ on:
   workflow_dispatch: 
   pull_request:
     types: [opened, reopened, synchronize]
-    paths-ignore:
-      - '.gitignore'
-      - '*.md'
-      - '.github/*.md'
+    paths:
+      - '**'
+      - '!.gitignore'
+      - '!*.md'
+      - '!.github/**'
+      - '.github/workflows/pull-request.yml'
 
 jobs:
   build: