ci: add path filters to lint and codeql workflows, fixes #9328

.github/workflows/black.yaml

@@ -3,7 +3,15 @@
 
 name: Lint
 
-on: [push, pull_request]
+on:
+  push:
+    paths:
+      - '**.py'
+      - 'pyproject.toml'
+  pull_request:
+    paths:
+      - '**.py'
+      - 'pyproject.toml'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}

.github/workflows/codeql-analysis.yml

@@ -5,9 +5,19 @@ name: "CodeQL"
 on:
   push:
     branches: [ master ]
+    paths:
+      - '**.py'
+      - '**.pyx'
+      - '**.c'
+      - '**.h'
   pull_request:
     # The branches below must be a subset of the branches above
     branches: [ master ]
+    paths:
+      - '**.py'
+      - '**.pyx'
+      - '**.c'
+      - '**.h'
   schedule:
     - cron: '39 2 * * 5'