build: ignore unrelated workflow changes in slow Actions tests

test-asan and test-macos are very slow and tend to get backed up. While
I'm literally waiting hours right now for test-macos to finish so I can
land a PR, I'm opening this pull request to have it be skipped when
things other than its own workflow file are the only changes in the PR.

.github/workflows/test-asan.yml

@@ -8,6 +8,8 @@ on:
       - '**.md'
       - 'AUTHORS'
       - 'doc/**'
+      - .github/**
+      - '!.github/workflows/test-asan.yml'
   push:
     branches:
       - master
@@ -20,6 +22,8 @@ on:
       - '**.md'
       - 'AUTHORS'
       - 'doc/**'
+      - .github/**
+      - '!.github/workflows/test-asan.yml'
 
 env:
   PYTHON_VERSION: '3.10'

.github/workflows/test-linux.yml

@@ -4,6 +4,8 @@ on:
   pull_request:
     paths-ignore:
       - "README.md"
+      - .github/**
+      - '!.github/workflows/test-linux.yml'      
     types: [opened, synchronize, reopened, ready_for_review]
   push:
     branches:
@@ -14,6 +16,8 @@ on:
       - v[0-9]+.x
     paths-ignore:
       - "README.md"
+      - .github/**
+      - '!.github/workflows/test-linux.yml'      
 
 env:
   PYTHON_VERSION: '3.10'

.github/workflows/test-macos.yml

@@ -8,6 +8,8 @@ on:
       - '**.md'
       - 'AUTHORS'
       - 'doc/**'
+      - .github/**
+      - '!.github/workflows/test-macos.yml'      
   push:
     branches:
       - master
@@ -20,6 +22,8 @@ on:
       - '**.md'
       - 'AUTHORS'
       - 'doc/**'
+      - .github/**
+      - '!.github/workflows/test-macos.yml'      
 
 env:
   PYTHON_VERSION: '3.10'