add gitea jobs and runner configuration

build and deploy colmena hive using gitea actions

.gitea/workflows/analysis.yaml

@@ -0,0 +1,15 @@
+on: [push]
+
+jobs:
+  analysis:
+    permissions:
+      contents: read
+      id-token: write
+    name: perform flake analysis
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+      - name: Check Nix flake inputs
+        uses: http://github.com/DeterminateSystems/flake-checker-action@main