Add rt_running_when_process_exits integration test

[TimoSteuerwaldETAS]

Part of #317

Verifies that a Run Target becomes ready only once a self-terminating component's process has actually exited, both when the terminated-ready component has a dependent and when it has none.

This test does not cover one requirement alone, but partially covers several requirements.

[github-actions]

License Check Results

🚀 The license check job ran with the Bazel command:

bazel run --lockfile_mode=error //:license-check

Status: ⚠️ Needs Review

Click to expand output

[License Check Output]
Extracting Bazel installation...
Starting local Bazel server (8.6.0) and connecting to it...
INFO: Invocation ID: 8fde4f62-3795-41a4-bef1-c650ce852963
Computing main repo mapping: 
Computing main repo mapping: 
Loading: 
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Analyzing: target //:license-check (1 packages loaded, 0 targets configured)
Analyzing: target //:license-check (1 packages loaded, 0 targets configured)

Analyzing: target //:license-check (41 packages loaded, 10 targets configured)

Analyzing: target //:license-check (90 packages loaded, 10 targets configured)

Analyzing: target //:license-check (152 packages loaded, 2394 targets configured)

Analyzing: target //:license-check (162 packages loaded, 4615 targets configured)

Analyzing: target //:license-check (162 packages loaded, 9393 targets configured)

Analyzing: target //:license-check (172 packages loaded, 9451 targets configured)

Analyzing: target //:license-check (173 packages loaded, 9575 targets configured)

INFO: Analyzed target //:license-check (177 packages loaded, 11589 targets configured).
[15 / 16] [Prepa] Generating Dash formatted dependency file ...
INFO: Found 1 target...
Target //:license.check.license_check up-to-date:
  bazel-bin/license.check.license_check
  bazel-bin/license.check.license_check.jar
INFO: Elapsed time: 22.610s, Critical Path: 0.38s
INFO: 16 processes: 4 disk cache hit, 12 internal.
INFO: Build completed successfully, 16 total actions
INFO: Running command line: bazel-bin/license.check.license_check ./formatted.txt <args omitted>
usage: org.eclipse.dash.licenses.cli.Main [-batch <int>] [-cd <url>]
       [-confidence <int>] [-ef <url>] [-excludeSources <sources>] [-help] [-lic
       <url>] [-project <shortname>] [-repo <url>] [-review] [-summary <file>]
       [-timeout <seconds>] [-token <token>]

[github-actions]

The created documentation from the pull request is available at: docu-html

[anmittag]

@TimoSteuerwaldETAS a) Outdated branch, b) some checks failed

Please adapt and Update the PR