NoMongo: Restore the GraphQL Introspection GitHub Action Test

.github/workflows/pull-request.yml

@@ -282,7 +282,7 @@ jobs:
           npx graphql-inspector validate schema.graphql src/**/*.graphql
 
   Graphql-Inspector:
-  #   if: ${{ github.actor != 'dependabot[bot]' }}
+    if: ${{ github.actor != 'dependabot[bot]' }}
     name: Runs Introspection on the GitHub talawa-api repo on the schema.graphql file
     runs-on: ubuntu-latest
     steps:
@@ -299,8 +299,8 @@ jobs:
 
       - name: Clone API Repository
         env:
-          BASE_REF: ${{ github.base_ref }}
-        run: >
+          BASE_REF: ${{ github.event.pull_request.base.ref }}
+        run: |
           # Retrieve the complete branch name directly from the GitHub context
           FULL_BRANCH_NAME="$BASE_REF"
           echo "FULL_BRANCH_NAME: $FULL_BRANCH_NAME"
@@ -317,8 +317,8 @@ jobs:
           fi
           # Verify clone was successful
           if [ ! -d "talawa-api" ]; then
-          echo "Error: talawa-api directory not found after clone"
-          exit 1
+            echo "Error: talawa-api directory not found after clone"
+            exit 1
           fi
 
       - name: Validate Documents