Update links from github.com to git.vdb.to (#732)

Update links and references to github.com to git.vdb.to.

Also enable the flake8 lint action in gitea.

Reviewed-on: cerc-io/stack-orchestrator#732
Co-authored-by: Thomas E Lackey <telackey@bozemanpass.com>
Co-committed-by: Thomas E Lackey <telackey@bozemanpass.com>

.gitea/workflows/lint.yml

@@ -0,0 +1,21 @@
+name: Lint Checks
+
+on:
+  pull_request:
+    branches: '*'
+  push:
+    branches: '*'
+
+jobs:
+  test:
+    name: "Run linter"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Clone project repository"
+        uses: actions/checkout@v3
+      - name: "Install Python"
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.8'
+      - name : "Run flake8"
+        uses: py-actions/flake8@v2