Fix build error in carma_v2x_msgs

[JonSmet]

PR Details

Description

This PR fixes a build error in the carma_v2x_msgs package that was originally introduced by PR #208.

Additionally, this PR includes an update for the Docker Push GitHub Action to fix an issue where the automated Docker Build was failing due to memory exhaustion.

Related GitHub Issue

Supports CARMA Platform Issue #2123

Related Jira Key

CDAR-175

Motivation and Context

This fixes a build issue that is keeping carma-msgs from building successfully.

How Has This Been Tested?

Built locally; however PR should verify that the automated Docker build reported by GitHub is successful as well.

Types of changes

• [x] Defect fix (non-breaking change that fixes an issue)
• [ ] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that cause existing functionality to change)

Checklist:

• [ ] I have added any new packages to the sonar-scanner.properties file
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.