Install KDS patch and configure dependabot to run on Wednesday

[MisRob]

Summary

• Updates KDS version from v3.0.0 to v3.0.1 (KDS release notes, no breaking changes)
• Pins KDS dependency to exact version
• Configure dependabot to run on Wednesday to sync its timing with KDS releases planned for Tuesdays

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Testing checklist

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
• Critical user journeys are covered by Gherkin stories
• Critical and brittle code paths are covered by unit tests

PR process

• PR has the correct target branch and milestone
• PR has 'needs review' or 'work-in-progress' label
• If PR is ready for review, a reviewer has been added. (Don't use 'Assignees')
• If this is an important user-facing change, PR or related issue has a 'changelog' label
• If this includes an internal dependency change, a link to the diff is provided

Reviewer checklist

• Automated test coverage is satisfactory
• PR is fully functional
• PR has been tested for accessibility regressions
• External dependency files were updated if necessary (yarn and pip)
• Documentation is updated
• Contributor is in AUTHORS.md

[github-actions]

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.16.0a0.dev0_git.625.ge2525daf.pex
Windows Installer (EXE)	kolibri-0.16.0a0.dev0+git.625.ge2525daf-unsigned.exe
Debian Package	kolibri_0.16.0a0.dev0+git.625.ge2525daf-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.16.0a0.dev0+git.625.ge2525daf-0.4.0.dmg
Android Package (APK)	kolibri-0.16.0a0.dev0+git.625.ge2525daf-0.1.0-debug.apk
TAR file	kolibri-0.16.0a0.dev0+git.625.ge2525daf.tar.gz
WHL file	kolibri-0.16.0a0.dev0+git.625.ge2525daf-py2.py3-none-any.whl

[MisRob]

I don't understand exactly why this appeared here now but my theory is that it should have appeared when I installed v3.0.0 but it didn't because I didn't properly update KDS package.json version at that time.

[rtibbles]

This seems to only happen where I've seen you upgrade packages, specifically - a similar line was recently removed by a dependabot upgrade https://github.com/learningequality/kolibri/pull/11907/files#diff-51e4f558fae534656963876761c95b83b6ef5da5103c4adef6768219ed76c2deL2349

and I think @bjester saw something similar when doing KDS upgrades on Studio as well.

I don't quite know why this is happening, but as it seems to be in parallel with the aphrodite git reference below, it doesn't seem terribly helpful.