Exclude dependabots PRs from code analysis

Author: giohappy

.github/workflows/codeql.yml

@@ -24,6 +24,7 @@ jobs:
   analyze:
     name: Analyze
     runs-on: ubuntu-latest
+    if: ${{ github.event.pull_request.user.login != 'dependabot[bot]'}}
     permissions:
       actions: read
       contents: read

.github/workflows/flake8.yml

@@ -16,6 +16,7 @@ jobs:
         python-version: [ '3.12']
 
     runs-on: ubuntu-latest
+    if: ${{ github.event.pull_request.user.login != 'dependabot[bot]'}}
 
     steps:
     - name: Checkout repository