CI: install sbt

[pjfanning]

We can no longer rely on sbt being pre-installed in CI envs.

https://eed3si9n.com/setup-sbt/

see broken jobs in https://github.com/apache/pekko-http/pull/618/checks

ubuntu-latest is now ubuntu-24 and as documented in the eed3si9n.com article, that does not have sbt pre-installed

we use a lot of different versions of ubuntu in our builds - change to use ubuntu 22 as a min

[samueleresca]

sbt should be still available in 22.04 ubuntu images though: https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md#project-management

[samueleresca]

Also:

bt/setup-sbt@v1 is not allowed to be used in apache/pekko-http. Actions in this workflow must be: within a repository that belongs to your Enterprise account, created by GitHub, verified in the GitHub Marketplace, or matching the following: 
*/*@[a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9][a-f0-9]+, AdoptOpenJDK/install-jdk@*, JamesIves/github-pages-
deploy-action@5dc1d5a192aeb5ab5b7d5a77b7d36aea4a7f5c92, TobKed/label-when-approved-action@*, actions-
cool/issues-helper@*, actions-rs/*, al-cheb/configure-pagefile-action@*, amannn/action-semantic-pull-request@*, 
apache/*, burrunan/gradle-cache-action@*, bytedeco/javacpp-presets/.github/actions/*, chromaui/action@*, 
codecov/codecov-action@*, conda-incubator/setup-miniconda@*, container-tools/kind-action@*, container-
tools/microshift-action@*, dawidd6/action-download-artifact@*, delaguardo/setup-graalvm@*, docker://jekyll/jekyll:*, 
docker://pandoc/core:2.9, eps1lon/actions-label-merge-conflict@*, gaurav-nelson/github-action-markdown-l...

Do we have restriction on the allowed GH action in the repo within the apache org? We might need to open a infra ticket?

[pjfanning]

@samueleresca ASF Infra team approves CI actions on a case by case basis. I will raise a JIRA with them.

[pjfanning]

ASF Infra have approved the sbt/setup-sbt action