[librsvg/librsvg-2.55] (13 commits) ...Merge branch 'backport-ci-fixes-2.55' into 'librsvg-2.55'

[Federico Mena Quintero <federico src gnome org>]

Summary of changes:

  269a407... CI: only install clippy and rustfmt for the rust-stable con
  7e96d13... install-rust-tools.sh: It's called clippy, not clippy-previ
  93f1e7a... CI: only install grcov in the stable image
  7125e37... install-rust.sh: Don't install rustdoc-stripper
  2ab69e5... CI: explicitly only build docs for the rust-stable image
  5b608d3... CI: don't build docs or the vala artifacts for the coverage
  7c4ee17... CI: Don't rebuild while generating reference documentation
  ebb4b16... Bump the base tag for container images
  b5987a4... CI: don't "make" before "make distcheck"
  7e866af... CI: rename the "unit test" stage to "analysis"
  ed4495f... CI: move the distcheck job to the acceptance test stage
  9222650... CI: Remove stages with no jobs
  a4fe5d9... Merge branch 'backport-ci-fixes-2.55' into 'librsvg-2.55'