Upgrade terraform-provider-gitlab to v17.3.0

[pulumi-bot]

This PR was generated via $ upgrade-provider pulumi/pulumi-gitlab --kind=all --target-bridge-version=latest.

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• Updating Java Gen version from 0.14.0 to 0.15.0.
• Upgrading terraform-provider-gitlab from 17.2.0 to 17.3.0. Fixes #689

[github-actions[bot]]

Does the PR have any schema changes?

Looking good! No breaking changes found.

New resources:

• index/groupSecurityPolicyAttachment.GroupSecurityPolicyAttachment

New functions:

• index/getGroupIds.getGroupIds
• index/getProjectIds.getProjectIds

Maintainer note: consult the runbook for dealing with any breaking changes.