ci: [not for review yet] setting up Airlock repositories

[suztomo]

Command to use the Airlock trusted repository:

suztomo@suztomo2:~/sdk-platform-java$ T=$(mktemp -d)
suztomo@suztomo2:~/sdk-platform-java$ echo $T
/tmp/tmp.o9TlWoaeQ6
suztomo@suztomo2:~/sdk-platform-java$ mvn -Dmaven.repo.local=$T clean install -DskipTests -Pairlock-trusted -P=-default-repositories

Thank you for opening a Pull Request! Before submitting your PR, please read our contributing guidelines.

There are a few things you can do to make sure it goes smoothly:

• Make sure to open an issue as a bug/issue before writing your code! That way we can discuss the change, evaluate designs, and agree on the general idea
• Ensure the tests and linter pass
• Code coverage does not decrease (if any source code was changed)
• Appropriate docs were updated (if necessary)

Fixes #<issue_number_goes_here> ☕️

[suztomo]

Current error: ```
[ERROR] Failed to execute goal on project api-common: Could not resolve dependencies for project com.google.api:api-common:jar:2.36.1-SNAPSHOT: Failed to collect dependencies at javax.annotation:javax.annotation-api:jar:1.3.2: Failed to read artifact descriptor for javax.annotation:javax.annotation-api:jar:1.3.2: Could not find artifact net.java:jvnet-parent:pom:3 in central (artifactregistry://us-maven.pkg.dev/artifact-foundry-prod/maven-3p-trusted) -> [Help 1]

[sonarcloud]

Quality Gate passed for 'gapic-generator-java-root'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[sonarcloud]

Quality Gate passed for 'java_showcase_integration_tests'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud