fix: git no longer available in container, throws error when using --from-last-tag

[jeohist]

Steps to Reproduce

We are using commitlint in our GitLab CI pipelines. With the upgrade to 19.6.0 we noticed unexpected failures, which turns out to be caused by Git no longer being available in the container after #4185.

Config:

commitlint:
  image: commitlint/commitlint:19.5.0
  script:
    npx commitlint --from-last-tag --to "$CI_COMMIT_SHA" --verbose

Current Behavior

Resulting error:

file:///usr/local/lib/node_modules/@commitlint/cli/lib/cli.js:132
        throw err;
        ^
Error: spawn git ENOENT
    at ChildProcess._handle.onexit (node:internal/child_process:[28](https://gitlab.rnd.mendix.com/devx/ci-templates/-/jobs/5153376#L28)4:19)
    at onErrorNT (node:internal/child_process:477:16)
    at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
  errno: -2,
  code: 'ENOENT',
  syscall: 'spawn git',
  path: 'git',
  spawnargs: [
    'describe',
    '--abbrev=40',
    '--always',
    '--first-parent',
    '--long',
    '--tags'
  ]
}
Node.js v18.20.5

Expected Behavior

Commits since last tag should be grabbed and linted.

Affected packages

• cli
• core
• prompt
• config-angular

Possible Solution

Install Git in the container, not just in the build layer

Context

No response

commitlint --version

19.6.0

git --version

N/A

node --version

v18.20.5