Change the build-semconv-daily workflow

.github/workflows/build-dev.yml

@@ -7,14 +7,6 @@ on:
         description: Regex of submodule paths to update to HEAD before building.
         default: content-modules
         type: string
-  workflow_call:
-    inputs:
-      submodule_path_regex:
-        type: string
-        required: true
-      skip_ref_cache_check:
-        type: boolean
-        default: false
 
 jobs:
   build-and-test:
@@ -60,7 +52,6 @@ jobs:
     name: REFCACHE updates?
     needs: build-and-test
     runs-on: ubuntu-latest
-    if: ${{ !inputs.skip_ref_cache_check }}
     steps:
       - uses: actions/checkout@v4
       - uses: actions/download-artifact@v4

.github/workflows/update-semconv-integration-branch.yml

@@ -0,0 +1,41 @@
+name: Update semconv integration branch
+
+on:
+  schedule:
+    # daily at 10:24 UTC
+    - cron: '24 10 * * *'
+  workflow_dispatch:
+
+jobs:
+  update-semconv-integration-branch:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: integration/semantic-conventions
+          # this is needed in order to do rebase below
+          fetch-depth: 0
+          # this is needed in order to trigger workflows on the PR
+          repo-token: ${{ secrets.OPENTELEMETRYBOT_GITHUB_TOKEN }}
+
+      - name: Use CLA approved github bot
+        run: |
+          git config user.name opentelemetrybot
+          git config user.email [email protected]
+
+      - name: Rebase
+        run: |
+          previous=$(git rev-parse HEAD)
+          git fetch origin
+          git merge origin/main
+          if [ "$(git rev-parse HEAD)" != "$previous" ]; then
+            git push origin integration/semantic-conventions
+          fi
+
+      - name: Update submodule
+        run: |
+          git submodule update --init --remote content-modules/semantic-conventions
+          if ! git diff-index --quiet HEAD; then
+            git commit -am "Update submodule"
+            git push origin integration/semantic-conventions
+          fi