Bumped to 2.0.7

[apeltzer]

To get some of the smaller bugs fixed since 2.0.6 in the stable branch, bumping to 2.0.7.

PR checklist

• This comment contains a description of changes (with reason)
• If you've fixed a bug or added code that should be tested, add tests!
• If necessary, also make a PR on the nf-core/eager branch on the nf-core/test-datasets repo
• Ensure the test suite passes (nextflow run . -profile test,docker).
• Make sure your code lints (nf-core lint .).
• Documentation in docs is updated
• CHANGELOG.md is updated
• README.md is updated

[drpatelh]

Looks good to me @apeltzer. Ill leave it to you to merge when you are ready 👍 Will have to change the date in the CHANGELOG when you decide to release.