feat(git): alias `gluc` to sync with current branch in upstream (#11101)

plugins/git/README.md

@@ -184,6 +184,7 @@ plugins=(... git)
 | gupom                | git pull --rebase origin $(git_main_branch)                                                                                      |
 | gupomi               | git pull --rebase=interactive origin $(git_main_branch)                                                                          |
 | glum                 | git pull upstream $(git_main_branch)                                                                                             |
+| gluc                 | git pull upstream $(git_current_branch)                                                                                             |
 | gwch                 | git whatchanged -p --abbrev-commit --pretty=medium                                                                               |
 | gwip                 | git add -A; git rm $(git ls-files --deleted) 2> /dev/null; git commit --no-verify --no-gpg-sign -m "--wip-- [skip ci]"           |
 | gam                  | git am                                                                                                                           |

plugins/git/git.plugin.zsh

@@ -310,6 +310,7 @@ alias gupav='git pull --rebase --autostash -v'
 alias gupom='git pull --rebase origin $(git_main_branch)'
 alias gupomi='git pull --rebase=interactive origin $(git_main_branch)'
 alias glum='git pull upstream $(git_main_branch)'
+alias gluc='git pull upstream $(git_current_branch)'
 
 alias gwch='git whatchanged -p --abbrev-commit --pretty=medium'
 alias gwip='git add -A; git rm $(git ls-files --deleted) 2> /dev/null; git commit --no-verify --no-gpg-sign -m "--wip-- [skip ci]"'