Fix artifactory SNAPSHOT publishing w/o credentials

[leordev]

Fix build failures due to PRs from external contributors (or bots) which won't have access to artifactory publishing

Example: https://github.com/TBD54566975/web5-kt/actions/runs/9086925778/job/25066223935

Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.2:deploy (default-deploy) on project web5: Failed to deploy artifacts: Could not transfer artifact xyz.block:web5-parent:pom:commit-02d5da2-20240516.174542-1 from/to tbd-oss-snapshots (https://blockxyz.jfrog.io/artifactory/tbd-oss-snapshots-maven2): status code: 401, reason phrase: (401) -> [Help 1]