Do not allow for any pushes to customer jars if the branch is dirty and not pushed to remote (#385)

## Summary
I've been seeing that it's difficult to track what changes went into
artifacts we push to etsy and canary. Especially when it comes to
tracking performance regressions for spark jobs one day to the next.

Adding a check to not allow any pushes to any customer artifacts if the
branch is dirty. All changes need to at least be pushed to remote.

And adding a metadata tag of the commit and branch


## Checklist
- [ ] Added Unit Tests
- [ ] Covered by existing CI
- [ ] Integration tested
- [ ] Documentation update



<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Introduced consistency checks during the build and upload process to
verify that local changes are committed and branches are in sync.
- Enhanced artifact metadata now includes additional context about the
code state at the time of upload.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: david-zlai

distribution/build_and_upload_gcp_artifacts.sh

@@ -1,5 +1,24 @@
 #!/bin/bash
 
+
+if [[ -n $(git diff HEAD) ]]; then
+    echo "Error: You have uncommitted changes. Please commit and push them to git so we can track them."
+    exit 1
+fi
+
+# Get current branch name
+local_branch=$(git rev-parse --abbrev-ref HEAD)
+
+# Fetch latest from remote
+git fetch origin $local_branch
+
+# Check if local is behind remote
+if [[ -n $(git diff HEAD..origin/$local_branch) ]]; then
+    echo "Error: Your branch is not in sync with remote"
+    echo "Please push your local changes and sync your local branch $local_branch with remote"
+    exit 1
+fi
+
 set -e
 
 SCRIPT_DIRECTORY=$(dirname -- "$(realpath -- "$0")")
@@ -85,11 +104,11 @@ function upload_to_gcp() {
               for element in "${customer_ids_to_upload[@]}"
               do
                 ELEMENT_JAR_PATH=gs://zipline-artifacts-$element/jars
-                gcloud storage cp "$CLOUD_GCP_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date)"
-                gcloud storage cp "$CLOUD_GCP_SUBMITTER_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date)"
-                gcloud storage cp "$SERVICE_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date)"
-                gcloud storage cp "$EXPECTED_ZIPLINE_WHEEL" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date)"
-                gcloud storage cp "$FLINK_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date)"
+                gcloud storage cp "$CLOUD_GCP_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
+                gcloud storage cp "$CLOUD_GCP_SUBMITTER_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
+                gcloud storage cp "$SERVICE_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
+                gcloud storage cp "$EXPECTED_ZIPLINE_WHEEL" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
+                gcloud storage cp "$FLINK_JAR" "$ELEMENT_JAR_PATH" --custom-metadata="zipline_user=$USER,updated_date=$(date),commit=$(git rev-parse HEAD),branch=$(git rev-parse --abbrev-ref HEAD)"
               done
               echo "Succeeded"
               break;;