Fix bin duplication in artifact path

[alfeilex]

Expected behavior

The installation commandlet ideasy.exe install should also work if bin is already in current path.

Actual behavior

When running ideasy install from a path, where bin is part of the current path, e.g. C:\projects\_ide\bin\ideasy, then bin is appended to the artifactPath extra, like C:\projects\_ide\bin\bin. That leads to a invalid path.

Steps to reproduce

Run C:\projects\_ide\bin\ideasy.exe install or navigate inside the bin folder and run ideasy.exe install there. Then enter yes and you should get this output. Otherwise you can also run with -f directly. Be sure that IDEasy is not installed on your system. Remove software/maven and also the env

Missing required file bin
Missing required file functions
Missing required file internal
Missing required file system
Missing required file IDEasy.pdf
Missing required file setup
IDEasy release is inconsistent at C:\projects\_ide\bin

Related/Dependent Issues

PR #978 needs this fix, because the MSI installer uses the absolute path to the ideasy.exe

Comments/Hints:

While debugging, I realized the extra appending of bin and the if-statement leading to the error message in this spot:

IDEasy/cli/src/main/java/com/devonfw/tools/ide/tool/IdeasyCommandlet.java

Lines 293 to 294 in e6cf615

	Path artifactPath = cwd.resolve(artifactName);
	if (Files.exists(artifactPath)) {

[alfeilex]

Closed because of misunderstanding of the problem