#1646 Implemented check for duplicate versions

[devySingh]

This PR fixes #1646

Implemented changes:

• Implemented a check for duplicate tool versions inside for loop, so that the loop skips iterating if no new versions are available.

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Checklist for this PR

Make sure everything is checked before merging this PR. For further info please also see
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• When running mvn clean test locally all tests pass and build is successful
• PR title is of the form #«issue-id»: «brief summary» (e.g. #921: fixed setup.bat). If no issue ID exists, title only.
• PR top-level comment summarizes what has been done and contains link to addressed issue(s)
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[coveralls]

Pull Request Test Coverage Report for Build 20330337112

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 38 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.001%) to 70.088%

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Files with Coverage Reduction	New Missed Lines	%
com/devonfw/tools/ide/tool/ToolCommandlet.java	38	75.56%

Totals
Change from base Build 20330220431:	0.001%
Covered Lines:	10188
Relevant Lines:	13961

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💛 - Coveralls

[hohwille]

@devySingh thanks for analysing, testing, and fixing this bug. Your PR looks good to me 👍
As I wrote, please also add the issue to the CHANGELOG.
Then we can merge.

[hohwille]

@devySingh excellent. Thanks for the update and completing your work nicely. 👍
Ready for merge.