[repo] chore: customize dependabot settings (#582)

## Linked issues

#minor

## Details

- group PR's by language/package type
- add commit prefix
- add language labels

.github/dependabot.yml

@@ -2,25 +2,48 @@ version: 2
 updates:
   - package-ecosystem: github-actions
     directory: /
+    commit-message:
+      prefix: '[repo] bump'
+      include: scope
+    labels: 
+      - dependencies
+    reviewers:
+      - microsoft/teams-ai-admins
     schedule:
       interval: weekly
 
   - package-ecosystem: nuget
-    directory: /dotnet/packages/Microsoft.TeamsAI/Microsoft.TeamsAI.Tests
-    schedule:
-      interval: weekly
-
-  - package-ecosystem: nuget
-    directory: /dotnet/packages/Microsoft.TeamsAI/Microsoft.TeamsAI
+    directory: /dotnet
+    commit-message:
+      prefix: '[C#] bump'
+      include: scope
+    labels: 
+      - dependencies
+      - dotnet
+    reviewers:
+      - microsoft/teams-ai-admins
     schedule:
       interval: weekly
+    groups:
+      production:
+        dependency-type: production
+      development:
+        dependency-type: development
 
   - package-ecosystem: npm
     directory: /js
+    commit-message:
+      prefix: '[JS] bump'
+      include: scope
+    labels:
+      - dependencies
+      - JS
+    reviewers:
+      - microsoft/teams-ai-admins
     schedule:
       interval: weekly
-
-  - package-ecosystem: npm
-    directory: /js/packages/teams-ai
-    schedule:
-      interval: weekly
+    groups:
+      production:
+        dependency-type: production
+      development:
+        dependency-type: development

.github/workflows/dependency-review.yml

@@ -19,4 +19,4 @@ jobs:
       - name: 'Checkout Repository'
         uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
       - name: 'Dependency Review'
-        uses: actions/dependency-review-action@0efb1d1d84fc9633afcdaad14c485cbbc90ef46c # v2.5.1
+        uses: actions/dependency-review-action@6c5ccdad469c9f8a2996bfecaec55a631a347034 # v3.1.0