gha: adjust the test workflow (#4615)

* gha: move lint check to tests workflow

* gha: tests: don't fail fast

* scripts: remove redundant check

.github/workflows/check-patch.yaml

@@ -1,21 +0,0 @@
-name: Lint Python
-
-on: [push, pull_request]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v1
-    - name: Set up Python 3.8
-      uses: actions/setup-python@v1
-      with:
-        python-version: 3.8
-    - name: Install requirements
-      run: pip install ".[all,tests]" Pygments collective.checkdocs pre-commit
-    - name: Check README
-      run: python setup.py checkdocs
-    - name: Check formatting
-      run: pre-commit run --all-files

.github/workflows/tests.yaml

@@ -8,9 +8,24 @@ env:
   SHELL: /bin/bash
 
 jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.8
+    - name: Install requirements
+      run: pip install ".[all,tests]" Pygments collective.checkdocs pre-commit
+    - name: Check README
+      run: python setup.py checkdocs
+    - name: Check formatting
+      run: pre-commit run --all-files
   tests:
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
         os: [ubuntu-18.04, windows-2019, macos-10.15]
         pyv: [3.6, 3.7, 3.8]