Post-process Release Changelog to Remove Duplicates

[marcusdacoregio]

We could somehow post-process the release changelog file and remove duplicates. The duplicates are identified as, for example:

• Bump io.micrometer:micrometer-observation from 1.12.0 to 1.12.1 https://github.com/spring-projects/spring-security/pull/14283
• Bump io.micrometer:micrometer-observation from 1.12.1 to 1.12.2 https://github.com/spring-projects/spring-security/pull/14427

Both entries could be merged into one, something like:

• Bump io.micrometer:micrometer-observation from 1.12.0 to 1.12.2 #14283 #14427