Update Maven Wrapper url in Maven.gitignore

[stonar96]

Reasons for making this change:

Maven Wrapper has been migrated to Apache Maven. Also the currently linked README.md section doesn't exist anymore.

Links to documentation supporting these rule changes:

https://github.com/takari/maven-wrapper https://github.com/apache/maven-wrapper The currently linked section doesn't exist anymore: https://github.com/takari/maven-wrapper/commit/dce6f0ddb95c49d18ed659ccc729649bdd20210c#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5L119 GitHub link to the same section in the new Apache project: https://github.com/apache/maven-wrapper/blob/master/src/site/markdown/index.md#usage-without-binary-jar Link to the same section in the new Apache project: https://maven.apache.org/wrapper/#usage-without-binary-jar

[stonar96]

@bdougie sorry, can you please review? I want to use this in new projects and it would be nice if I could include these changes automatically via the template.