Bump actions/checkout from 6.0.2 to 6.0.3

## Release notes

Sourced from actions/checkout's releases.

v6.0.3
What's Changed

Update changelog by @​ericsciple in actions/checkout#2357
fix: expand merge commit SHA regex and add SHA-256 test cases by @​yaananth in actions/checkout#2414
Fix checkout init for SHA-256 repositories by @​yaananth in actions/checkout#2439
Update changelog for v6.0.3 by @​yaananth in actions/checkout#2446

New Contributors

@​yaananth made their first contribution in actions/checkout#2414

Full Changelog: actions/checkout@v6...v6.0.3

## Changelog

Sourced from actions/checkout's changelog.

Changelog
v6.0.3

Fix checkout init for SHA-256 repositories by @​yaananth in actions/checkout#2439
fix: expand merge commit SHA regex and add SHA-256 test cases by @​yaananth in actions/checkout#2414

v6.0.2

Fix tag handling: preserve annotations and explicit fetch-tags by @​ericsciple in actions/checkout#2356

v6.0.1

Add worktree support for persist-credentials includeIf by @​ericsciple in actions/checkout#2327

v6.0.0

Persist creds to a separate file by @​ericsciple in actions/checkout#2286
Update README to include Node.js 24 support details and requirements by @​salmanmkc in actions/checkout#2248

v5.0.1

Port v6 cleanup to v5 by @​ericsciple in actions/checkout#2301

v5.0.0

Update actions checkout to use node 24 by @​salmanmkc in actions/checkout#2226

v4.3.1

Port v6 cleanup to v4 by @​ericsciple in actions/checkout#2305

v4.3.0

docs: update README.md by @​motss in actions/checkout#1971
Add internal repos for checking out multiple repositories by @​mouismail in actions/checkout#1977
Documentation update - add recommended permissions to Readme by @​benwells in actions/checkout#2043

Adjust positioning of user email note and permissions heading by @​joshmgross in actions/checkout#2044
Update README.md by @​nebuk89 in actions/checkout#2194
Update CODEOWNERS for actions by @​TingluoHuang in actions/checkout#2224
Update package dependencies by @​salmanmkc in actions/checkout#2236

v4.2.2

url-helper.ts now leverages well-known environment variables by @​jww3 in actions/checkout#1941
Expand unit test coverage for isGhes by @​jww3 in actions/checkout#1946

v4.2.1

Check out other refs/* by commit if provided, fall back to ref by @​orhantoy in actions/checkout#1924

v4.2.0

Add Ref and Commit outputs by @​lucacome in actions/checkout#1180
Dependency updates by @​dependabot- actions/checkout#1777, actions/checkout#1872

v4.1.7

Bump the minor-npm-dependencies group across 1 directory with 4 updates by @​dependabot in actions/checkout#1739
Bump actions/checkout from 3 to 4 by @​dependabot in actions/checkout#1697
Check out other refs/* by commit by @​orhantoy in actions/checkout#1774

... (truncated)

## Commits

df4cb1c Update changelog for v6.0.3 (#2446)
1cce339 Fix checkout init for SHA-256 repositories (#2439)
900f221 fix: expand merge commit SHA regex and add SHA-256 test cases (#2414)
0c366fd Update changelog (#2357)
See full diff in compare view

![Dependabot compatibility score](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Issue-ID: CIMAN-33
Signed-off-by: dependabot[bot] <support@github.com>
Change-Id: I6369c999c21642d30e1419c4df359a5310c92c0b
GitHub-PR: #22
GitHub-Hash: 9c210db6bd56dd66
Signed-off-by: onap.gh2gerrit <releng+onap-gh2gerrit@linuxfoundation.org>

Author: dependabot[bot]

.github/workflows/call-github2gerrit.yaml

@@ -102,7 +102,7 @@ jobs:
           egress-policy: audit
 
       # yamllint disable-line rule:line-length
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
 
@@ -161,7 +161,7 @@ jobs:
 
       - name: "Checkout repository"
         # yamllint disable-line rule:line-length
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 10
           ref: ${{ github.event.pull_request.head.sha || github.sha }}