[PATCH v2 3/3] ci (check-whitespace): move to actions/checkout@v3

["Chris. Webster via GitGitGadget" <gitgitgadget@xxxxxxxxx>]

From: "Chris. Webster" <chris@xxxxxxxxxxxx>

Get rid of deprecation warnings in the CI runs.  Also gets the latest
security patches.

Signed-off-by: Chris. Webster <chris@xxxxxxxxxxxx>
---
 .github/workflows/check-whitespace.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/check-whitespace.yml b/.github/workflows/check-whitespace.yml
index 552894f736a..da557fd5914 100644
--- a/.github/workflows/check-whitespace.yml
+++ b/.github/workflows/check-whitespace.yml
@@ -13,7 +13,7 @@ jobs:
   check-whitespace:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         fetch-depth: 0
 
-- 
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