devops: CD only on source changes and dependabot

.github/dependabot.yaml

@@ -0,0 +1,22 @@
+version: 2
+registries:
+  public-nuget:
+    type: nuget-feed
+    url: https://api.nuget.org/v3/index.json
+updates:
+  - package-ecosystem: nuget
+    directory: "/"
+    registries:
+      - public-nuget
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 15
+    labels:
+      - "area-dependencies"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 5
+    labels:
+      - "area-dependencies"

.github/workflows/main.yaml

@@ -30,11 +30,17 @@ jobs:
     needs: ci
     runs-on: ubuntu-latest
     if: >
+      (
+      contains(toJson(github.event.commits), 'src/') || 
+      contains(toJson(github.event.commits), 'ES.FX.sln') || 
+      contains(toJson(github.event.commits), 'Directory.Build.props')
+      ) && (
       github.ref == 'refs/heads/main' ||
       github.ref == 'refs/heads/develop' ||
       startsWith(github.ref, 'refs/heads/feature/') ||
       startsWith(github.ref, 'refs/heads/release/') ||
       startsWith(github.ref, 'refs/heads/hotfix/')
+      )
 
     steps:
       - name: checkout