#1823: gitconfig duplicate longpaths

[AdemZarrouki]

This PR fixes #1823

Implemented changes:

• Fix duplicate property entries in IniSection by updating existing properties.
• Added test testInstallIdeasyTwiceDoesNotDuplicateGitLongpaths in IDEasy/cli/src/test/java/com/devonfw/tools/ide/tool/IdeasyCommandletTest.java.

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Checklist for this PR

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• When running mvn clean test locally all tests pass and build is successful
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[coveralls]

Coverage Report for CI Build 24558345732

Coverage increased (+0.05%) to 70.5%

Details

• Coverage increased (+0.05%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 1 coverage regression across 1 file.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

1 previously-covered line in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/io/ini/IniSection.java	1	92.31%

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Coverage Stats

Relevant Lines:	15075
Covered Lines:	11077
Line Coverage:	73.48%
Relevant Branches:	6698
Covered Branches:	4273
Branch Coverage:	63.8%
Branches in Coverage %:	Yes
Coverage Strength:	3.1 hits per line

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💛 - Coveralls