Update maintainers, manpage and completions.

Autogenerated by the [update-manpage](https://github.com/Homebrew/brew/blob/HEAD/.github/workflows/update-manpage.yml) workflow.

completions/bash/brew

@@ -436,6 +436,7 @@ _brew_bump_cask_pr() {
       --debug
       --dry-run
       --force
+      --fork-org
       --help
       --message
       --no-audit

completions/fish/brew.fish

@@ -394,6 +394,7 @@ __fish_brew_complete_arg 'bump-cask-pr' -l commit -d 'When passed with `--write`
 __fish_brew_complete_arg 'bump-cask-pr' -l debug -d 'Display any debugging information'
 __fish_brew_complete_arg 'bump-cask-pr' -l dry-run -d 'Print what would be done rather than doing it'
 __fish_brew_complete_arg 'bump-cask-pr' -l force -d 'Ignore duplicate open PRs'
+__fish_brew_complete_arg 'bump-cask-pr' -l fork-org -d 'Use the specified GitHub organization for forking'
 __fish_brew_complete_arg 'bump-cask-pr' -l help -d 'Show this message'
 __fish_brew_complete_arg 'bump-cask-pr' -l message -d 'Append message to the default pull request message'
 __fish_brew_complete_arg 'bump-cask-pr' -l no-audit -d 'Don\'t run `brew audit` before opening the PR'

completions/zsh/_brew

@@ -491,6 +491,7 @@ _brew_bump_cask_pr() {
     '--debug[Display any debugging information]' \
     '(--write)--dry-run[Print what would be done rather than doing it]' \
     '--force[Ignore duplicate open PRs]' \
+    '--fork-org[Use the specified GitHub organization for forking]' \
     '--help[Show this message]' \
     '--message[Append message to the default pull request message]' \
     '(--online)--no-audit[Don'\''t run `brew audit` before opening the PR]' \

docs/Manpage.md

@@ -874,6 +874,8 @@ supplied by the user.
   Specify the *`URL`* for the new download.
 * `--sha256`:
   Specify the *`SHA-256`* checksum of the new download.
+* `--fork-org`:
+  Use the specified GitHub organization for forking.
 * `-f`, `--force`:
   Ignore duplicate open PRs.
 

manpages/brew.1

@@ -1219,6 +1219,10 @@ Specify the \fIURL\fR for the new download\.
 Specify the \fISHA\-256\fR checksum of the new download\.
 .
 .TP
+\fB\-\-fork\-org\fR
+Use the specified GitHub organization for forking\.
+.
+.TP
 \fB\-f\fR, \fB\-\-force\fR
 Ignore duplicate open PRs\.
 .