[librsvg/librsvg-2.42] (17 commits) ...Merge branch 'librsvg-2.42' into 'librsvg-2.42'

[Federico Mena Quintero <federico src gnome org>]

Summary of changes:

  2010298... .gitlab-ci.yml: Factor out names of the Docker images, to k
  3f662dc... Add back --enable-gtk-doc --enable-vala
  0e6d857... gitlab-ci: Enable rustfmt.
  b2f5b0f... Rustfmt.
  4715499... gitlab-ci: Do not share the case between branches.
  2f441e2... gitlab-ci: Create .cargo_cache if it does not exist.
  b2848f6... gitlab-ci: Fix the cargo cache.
  ea0ba6a... Copy .rustmft.toml config from rsvg-bench.
  fda7632... Update rustfmt.
  3765b24... Normalize comments.
  61ec261... rustfmt: Skip the attribute slice in build.rs
  ee1e105... rustfmt: Change the layout of 'import' and 'use'.
  f820119... Rustfmt: Switch 'indent_style' to 'Block'.
  c237298... clippy: remove 'needless_borrow's
  2d80b74... clippy: remove 'redundant_closure'
  1b95365... Normalize the rustfmt of a few files I missed
  a5b09da... Merge branch 'librsvg-2.42' into 'librsvg-2.42'