Add GHA to build and publish snapshots to maven & add mvn process on package_proto_jar.sh

[lucy66hw]

Description

Upload opensearch-protobuf-1.0.0.jar to maven SONATYPE

Issues Resolved

#9

###test
test locally by changing Durl=local

[INFO] Scanning for projects...
[INFO] 
[INFO] ------------------< org.apache.maven:standalone-pom >-------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] 
[INFO] --- maven-deploy-plugin:2.7:deploy-file (default-cli) @ standalone-pom ---
Downloading from Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/1.0.0-SNAPSHOT/maven-metadata.xml
Uploading to Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/1.0.0-SNAPSHOT/opensearch-protobuf-1.0.0-20250321.040525-1.jar
Uploaded to Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/1.0.0-SNAPSHOT/opensearch-protobuf-1.0.0-20250321.040525-1.jar (1.7 kB at 211 kB/s)
Uploading to Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/1.0.0-SNAPSHOT/opensearch-protobuf-1.0.0-20250321.040525-1.pom
Uploaded to Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/1.0.0-SNAPSHOT/opensearch-protobuf-1.0.0-20250321.040525-1.pom (416 B at 208 kB/s)
Downloading from Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/maven-metadata.xml
Uploading to Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/1.0.0-SNAPSHOT/maven-metadata.xml
Uploaded to Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/1.0.0-SNAPSHOT/maven-metadata.xml (783 B at 392 kB/s)
Uploading to Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/maven-metadata.xml
Uploaded to Snapshots: file:///home/user/opensearch-protobufs/org/opensearch/opensearch-protobuf/maven-metadata.xml (293 B at 146 kB/s)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.355 s
[INFO] Finished at: 2025-03-21T04:05:25Z
[INFO] ------------------------------------------------------------------------

folder structure
.

├── 1.0.0-SNAPSHOT
│   ├── maven-metadata.xml
│   ├── maven-metadata.xml.md5
│   ├── maven-metadata.xml.sha1
│   ├── opensearch-protobuf-1.0.0-20250321.054307-1.jar
│   ├── opensearch-protobuf-1.0.0-20250321.054307-1.jar.md5
│   ├── opensearch-protobuf-1.0.0-20250321.054307-1.jar.sha1
│   ├── opensearch-protobuf-1.0.0-20250321.054307-1.pom
│   ├── opensearch-protobuf-1.0.0-20250321.054307-1.pom.md5
│   └── opensearch-protobuf-1.0.0-20250321.054307-1.pom.sha1
├── maven-metadata.xml
├── maven-metadata.xml.md5
└── maven-metadata.xml.sha1

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[karenyrx]

i think the mvn deploy command should be added to the GHA file maven-publish.yml instead of package_proto_jar.sh, so we can use the latter script for creating local jars for testing, without accidentally publishing to maven central

[karenyrx]

merging to test per #12 (comment)