fix(custom-gitguardian): error invalid token header hyperledger-cacti…

…#2379

fixes: hyperledger-cacti#2379

related to: hyperledger-cacti#2313 and hyperledger-cacti#1996

This fixes the Invalid token header, no credentials provided error
of the custom gitguardian workflow.

Signed-off-by: ruzell22 <[email protected]>

.github/workflows/gg-shield-action.yaml

@@ -1,34 +1,23 @@
 name: GitGuardian scan
 
-on: 
-  push:
-  pull_request:
-    # Publish `main` as Docker `latest` image.
-    branches:
-      - main
-
-    # Publish `v1.2.3` tags as releases.
-    tags:
-      - v*
+on: [push, pull_request]
 
 jobs:
   scanning:
     name: GitGuardian scan
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.4.0
+        uses: actions/checkout@v3.5.1
         with:
           fetch-depth: 0 # fetch all history so multiple commits can be scanned
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: GitGuardian scan
-        uses: GitGuardian/[email protected].4
+        uses: GitGuardian/[email protected].5
         with:
           args: --show-secrets --exit-zero --all-policies --verbose
         env:
           GITHUB_PUSH_BEFORE_SHA: ${{ github.event.before }}
           GITHUB_PUSH_BASE_SHA: ${{ github.event.base }}
           GITHUB_PULL_BASE_SHA: ${{ github.event.pull_request.base.sha }}
-          GITHUB_DEFAULT_BRANCH: main
+          GITHUB_DEFAULT_BRANCH: ${{ github.event.repository.default_branch }}
           GITGUARDIAN_API_KEY: ${{ secrets.GITGUARDIAN_API_KEY }}