refactor: consolidate Dependabot dependency groups and remove placeholder pom.xml

- Consolidate 4 Dependabot entries into 2 (single gradle + github-actions)
- Merge gradle directories (/, /java-8, /android) into one entry
- Remove maven ecosystem entry (pom.xml was only a placeholder)
- Add dependency groups: microsoft-graph, android-build-tools, all-actions
- Add Gradle dependency submission job to gradle-build.yml
- Delete placeholder pom.xml and clean up references

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: ramsessanchez

.github/dependabot.yml

@@ -4,6 +4,7 @@ updates:
   directories:
     - "/"
     - "/java-8"
+    - "/android"
   schedule:
     interval: daily
     time: "09:00" # 9am UTC
@@ -12,45 +13,27 @@ updates:
     kiota-dependencies:
       patterns:
         - "*kiota*"
-    junit-dependencies:
-      patterns:
-        - "*junit*"
-    open-telemetry:
-      patterns:
-        - "*opentelemetry*"
-- package-ecosystem: gradle
-  directory: "/android"
-  schedule:
-    interval: daily
-    time: "10:00" # 10am UTC. After core projects are updated to prevent duplicate PRs
-  open-pull-requests-limit: 10
-  groups:
-    kiota-dependencies:
+    microsoft-graph:
       patterns:
-        - "*kiota*"
+        - "*microsoft-graph*"
     junit-dependencies:
       patterns:
         - "*junit*"
     open-telemetry:
       patterns:
         - "*opentelemetry*"
-- package-ecosystem: maven
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 10
-  groups:
-    kiota-dependencies:
-      patterns:
-        - "*kiota*"
-    junit-dependencies:
-      patterns:
-        - "*junit*"
-    open-telemetry:
+    android-build-tools:
       patterns:
-        - "*opentelemetry*"
+        - "*android*"
+        - "*gradle-enterprise*"
+        - "*gradle-util*"
+        - "*gradle-versions*"
 - package-ecosystem: github-actions
   directory: "/"
   schedule:
     interval: daily
   open-pull-requests-limit: 10
+  groups:
+    all-actions:
+      patterns:
+        - "*"

.github/workflows/gradle-build.yml

@@ -81,3 +81,19 @@ jobs:
             exit 1
           fi
 
+  dependency-submission:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v6
+      - name: Set up JDK
+        uses: actions/setup-java@v5
+        with:
+          java-version: 21
+          distribution: 'temurin'
+          cache: gradle
+      - name: Generate and submit dependency graph
+        uses: gradle/actions/dependency-submission@v4
+

build.gradle

@@ -23,7 +23,6 @@ java {
 sourceSets {
     main {
         java {
-            exclude 'pom.xml'
         }
     }
 }

pom.xml

@@ -16,12 +16,7 @@
       "extra-files": [
         "gradle.properties",
         "README.md",
-        "src/main/java/com/microsoft/graph/info/Constants.java",
-        {
-          "type": "xml",
-          "path": "pom.xml",
-          "xpath": "//project/version"
-        }
+        "src/main/java/com/microsoft/graph/info/Constants.java"
       ]
     }
   },