Add trigger to workflows with dependabot updates (DataDog#22914)

Author: lucia-sb

.github/workflows/codeql-analysis.yml

@@ -8,6 +8,7 @@ on:
     branches: [ master ]
     paths:
       - '**/*.py'
+      - '.github/workflows/codeql-analysis.yml'
 
 jobs:
   analyze:

.github/workflows/test-build-devcontainer.yml

@@ -6,7 +6,7 @@ on:
     pull_request:
       paths:
       - .devcontainer/**
-
+      - '.github/workflows/test-build-devcontainer.yml'
 jobs:
   docker:
     runs-on: ubuntu-latest