Add mrequests to the index

[sebromero]

This PR adds the mrequests package to the index and updates one entry from the micropython-lib index.

[github-actions]

yamllint Failed

Show Output

::group::package-list.yaml
::error file=package-list.yaml,line=297,col=25::297:25 [new-line-at-end-of-file] no new line character at the end of file
::endgroup::

Workflow: YAML Validation, Action: __karancode_yamllint-github-action, Lint: package-list.yaml

[github-actions]

yamllint Failed

Show Output

::group::package-list.yaml
::error file=package-list.yaml,line=298,col=5::298:5 [new-line-at-end-of-file] no new line character at the end of file
::error file=package-list.yaml,line=298,col=1::298:1 [trailing-spaces] trailing spaces
::endgroup::

Workflow: YAML Validation, Action: __karancode_yamllint-github-action, Lint: package-list.yaml