Split main tox test build and linters into two workflows.

Author: javabrett

.github/workflows/lint.yml

@@ -0,0 +1,29 @@
+name: lint
+on: [push, pull_request]
+jobs:
+  tox-lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - run: pip install --upgrade pip
+      - run: pip install tox
+      - run: tox -e lint
+
+  tox-docs-lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - run: pip install --upgrade pip
+      - run: pip install tox
+      - run: tox -e docs-lint
+
+  tox-pycodestyle:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+      - run: pip install --upgrade pip
+      - run: pip install tox
+      - run: tox -e pycodestyle

.github/workflows/tox.yml

@@ -1,33 +1,6 @@
 name: tox
 on: [push, pull_request]
 jobs:
-  tox-lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
-      - run: pip install --upgrade pip
-      - run: pip install tox
-      - run: tox -e lint
-
-  tox-docs-lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
-      - run: pip install --upgrade pip
-      - run: pip install tox
-      - run: tox -e docs-lint
-
-  tox-pycodestyle:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
-      - run: pip install --upgrade pip
-      - run: pip install tox
-      - run: tox -e pycodestyle
-
   tox:
     strategy:
       fail-fast: false