#1964: fixed maven using wrong process context

[laim2003]

This PR fixes #1964

Implemented changes:

• Changed Maven installation logic to use a project context shared with the java tool. This ensures, that our specified java version for the GUI is used, not the general project java version.

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Testing instructions

1. icd -P test (or ide create test)
2. ide install java 8*
3. ide gui

This should now launch the gui without any issues, and maven should use java 25 when initializing.

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[coveralls]

Coverage Report for CI Build 26280591750

Warning

Build has drifted: This PR's base is out of sync with its target branch, so coverage data may include unrelated changes.
Quick fix: rebase this PR. Learn more →

Coverage decreased (-0.05%) to 71.016%

Details

• Coverage decreased (-0.05%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 12 coverage regressions across 2 files.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

12 previously-covered lines in 2 files lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/tool/gui/Gui.java	10	19.23%
com/devonfw/tools/ide/version/VersionSegment.java	2	88.19%

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Coverage Stats

Relevant Lines:	15532
Covered Lines:	11505
Line Coverage:	74.07%
Relevant Branches:	6946
Covered Branches:	4458
Branch Coverage:	64.18%
Branches in Coverage %:	Yes
Coverage Strength:	3.13 hits per line

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💛 - Coveralls

[hohwille]

As I wrote in the chat install is wrong since it does the complete installation into the project.
What we really want here is just installTool(...Request).
Maybe the javaToolInstallRequest should have the mavenToolInstallRequest as parent since this is a dependency or maybe thinking even further, we do not need that at all if the dependencies.json will bring that automatically (but I am not sure if we bypass install and just call installTool).