ci: release workflow improvements

[umaucher]

Changes:

1. Skip release-verification if prepare-release fails - don't waste runner time on expensive build/test/coverage when tagging fails
2. Add git config to tag creation step - fixes 'empty ident name' error that was blocking releases

Motivation:

Sequential job dependencies ensure the full release pipeline only runs when tag creation succeeds.

[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: b9da5124-624f-4825-a8b8-56b69d07aa8f
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Loading: 
Loading: 3 packages loaded
Loading: 3 packages loaded
    currently loading: 
Loading: 3 packages loaded
    currently loading: 
Loading: 3 packages loaded
    currently loading: 
Analyzing: target //:license-check (4 packages loaded, 0 targets configured)
Analyzing: target //:license-check (4 packages loaded, 0 targets configured)

Analyzing: target //:license-check (30 packages loaded, 10 targets configured)

Analyzing: target //:license-check (91 packages loaded, 21 targets configured)

Analyzing: target //:license-check (137 packages loaded, 2520 targets configured)

Analyzing: target //:license-check (139 packages loaded, 2712 targets configured)

Analyzing: target //:license-check (139 packages loaded, 2712 targets configured)

Analyzing: target //:license-check (139 packages loaded, 2712 targets configured)

Analyzing: target //:license-check (149 packages loaded, 5093 targets configured)

Analyzing: target //:license-check (153 packages loaded, 8074 targets configured)

Analyzing: target //:license-check (157 packages loaded, 8102 targets configured)

Analyzing: target //:license-check (161 packages loaded, 8133 targets configured)

Analyzing: target //:license-check (161 packages loaded, 8133 targets configured)

Analyzing: target //:license-check (162 packages loaded, 8257 targets configured)

Analyzing: target //:license-check (165 packages loaded, 10145 targets configured)

INFO: Analyzed target //:license-check (166 packages loaded, 10271 targets configured).
[13 / 17] JavaToolchainCompileClasses external/rules_java+/toolchains/platformclasspath_classes; 0s disk-cache, processwrapper-sandbox ... (2 actions, 1 running)
INFO: From Generating Dash formatted dependency file ...:
INFO: Successfully converted 66 packages from Cargo.lock to bazel-out/k8-fastbuild/bin/formatted.txt
[16 / 17] [Prepa] Building license.check.license_check.jar ()
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: 30.854s, Critical Path: 2.60s
INFO: 17 processes: 12 internal, 4 processwrapper-sandbox, 1 worker.
INFO: Build completed successfully, 17 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