Use older version of actions/checkout

[walkowif]

Changes between actions/[email protected] and actions/[email protected] (probably related to sparse checkout) introduced a regression in workflows which use staged.dependencies.

The following error occurs in the Run Staged dependencies step:

Error in git2r::repository(".") : Unable to open repository at 'path'
Calls: <Anonymous> -> <Anonymous>
Execution halted

[github-actions]

Code Coverage Summary

Filename      Stmts    Miss  Cover    Missing
----------  -------  ------  -------  ---------
R/hello.R        20       6  70.00%   55-60
TOTAL            20       6  70.00%

Diff against main

Filename      Stmts    Miss  Cover
----------  -------  ------  --------
TOTAL             0       0  +100.00%

Results for commit: d2e5490

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results

[github-actions]

Unit Tests Summary

3 tests   3 ✅  6s ⏱️
3 suites  0 💤
1 files    0 ❌

Results for commit d2e5490.

♻️ This comment has been updated with latest results.

[cicdguy]

I'm sure they'll fix the bug in a newer version of the action but this should do for now.

[walkowif]

@cicdguy Do you think it makes sense to change the version in all workflows or only the affected ones (which use SD): build-check-install, test-coverage and roxygen?

[cicdguy]

All is fine. Pinning to a stable release is better too.