Add sha256sum to releases

[babaric-dev]

Closes #11874

[babaric-dev]

Please merge this PR if there are no problems 😄

[agnostic-apollo]

Create a single file with find . -maxdepth 1 -type f -name "bootstrap-*.zip" -exec sha256sum {} \; | sed "s| ./| |g" | sort -nk2 > bootstraps.sha256sum

[babaric-dev]

Create a single file with find . -maxdepth 1 -type f -name "bootstrap-*.zip" -exec sha256sum {} \; | sed "s| ./| |g" | sort -nk2 > bootstraps.sha256sum

I have done editing. Please check.

[2096779623]

Don't update upstream like this, Revert to the original commit:

git clone https://github.com/babaric-dev/termux-packages
cd termux-packages
git reset --hard 2035a8f
# Please squash the commit here and refer to https://github.com/termux/termux-packages/commits/master/.github/workflows/bootstrap_archives.yml to rewrite the commit message.
git push origin master -f

update upstream like this next time :) .

[babaric-dev]

I cant setup git (sighs). Can anyone help me run these commands?
Edit: maybe I will make another PR (XD) and close this one.

[babaric-dev]

Made another PR (#11956) because I can't bear the hassle of figuring out git on my system. Closing this PR.