Refactor CI

[pavelzw]

This is an attempt to make the CI pipeline easier to read.

Notable changes:

• hardcode all non-changing things (like PROJECT_NAME) for easier readability
• use more github jinja instead of bash variables since they are evaluated directly when looking at the CI logs
• use rust cache for compiling
• don't strip debug information (they should already not be included when compiling with --release, right?)
• put fmt, clippy in the same workflow
• add aarch64-unknown-linux-musl
• switch from x86_64-unknown-linux-gnu to x86_64-unknown-linux-musl (as in pixi)
• move away from deprecated actions-rs/* actions

[pavelzw]

Any ideas on why the aarch-unknown-linux-musl test is failing? Seems to be failing here:

rattler-build/src/source/git_source.rs

Lines 292 to 311 in d863171

	GitSource::create(
	GitUrl::Path("../rattler-build".parse().unwrap()),
	"".to_owned(),
	None,
	vec![],
	None,
	false,
	),
	"rattler-build",
	),
	];
	for (source, repo_name) in cases {
	let path = git_src(
	&source,
	cache_dir.as_ref(),
	// TODO: this test assumes current dir is the root folder of the project which may
	// not be necessary for local runs.
	std::env::current_dir().unwrap().as_ref(),
	)
	.unwrap();

Maybe the .git directory is not mounted correctly in the cross container?

[pavelzw]

Didn't manage to reproduce the failing test locally, let's keep aarch64 tests deactivated for now.

[wolfv]

thanks!