git: 54f3a781a2ff - main - .github: Switch to v3 of actions/checkout.

From: John Baldwin <jhb_at_FreeBSD.org>
Date: Wed, 21 Dec 2022 00:27:59 UTC 
The branch main has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=54f3a781a2ff980034dfe13ff6323c96fc587f1b

commit 54f3a781a2ff980034dfe13ff6323c96fc587f1b
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2022-12-21 00:27:17 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2022-12-21 00:27:17 +0000

    .github: Switch to v3 of actions/checkout.
    
    GitHub is emitting a warning that v2 is deprecated due to using
    Node.js 12.
    
    Reported by:    GitHub
    Reviewed by:    arichardson, emaste
    Differential Revision:  https://reviews.freebsd.org/D37769
---
 .github/workflows/cross-bootstrap-tools.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/cross-bootstrap-tools.yml b/.github/workflows/cross-bootstrap-tools.yml
index ce50bc9cb36e..85132996f826 100644
--- a/.github/workflows/cross-bootstrap-tools.yml
+++ b/.github/workflows/cross-bootstrap-tools.yml
@@ -34,7 +34,7 @@ jobs:
           - target_arch: aarch64
             target: arm64
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: install packages (Ubuntu)
         if: runner.os == 'Linux'
         run: |