refactor: update dependencies and go version

The diff shows updates to the Go version, toolchain, and several dependencies in the go.mod file. It also includes some minor refactoring in the import statements to group external and internal packages separately.

Merge pull request #1 from emilienkofman/master

chore: update all libs (incl. support for go.mod 'toolchain' keyword introduced in go1.21)

profile: only profile if GWD_PROFILE is set

refactor: use list of files change to compute modules changes instead…

… of using go-git module

update: go-git version, git tree algorithm

fix: don't print if no modules

fix: use space instead of newline as a separator for human output

change: diff help, use std filepath walk

fix: use merge request event for triggered pipeline

fix: generate pipeline with "working" stage