fix: Find Ccache version from lightweight Git tag

fix: Find Ccache version from lightweight Git tag

Ccache calculates its version from a matching Git tag by using the "git
describe" command, which only considers annotated tags. All ccache tags
are annotated. However, when running a GitHub action job for a tag the
local Git repository is (at least by default) a shallow clone with the
tag being converted to a lightweight tag. This makes "git describe" not
see the tag.

Fix this by adding --tags to "git describe" to make it consider
lightweight tags as well.

Fixes #1270.