Upgrade actions/checkout

[mportesdev]

GitHub Action: upgrade the actions/checkout action to v4.

[ericwb]

LGTM

[sigmavirus24]

Please just turn on dependabot instead to auto-upgrade these. urllib3 has an example for configuring it to do exactly that.

[lukehinds]

Maybe we should change it from monthly, to weekly? Looking around most go for daily (which is my pref)

https://github.com/PyCQA/bandit/blob/main/.github/dependabot.yml#L7

[ericwb]

While this change is fine, as noted by @lukehinds and @sigmavirus24, a better fix is to update the schedule of the dependabot which is automatically checking for newer version of the actions.

[ericwb]

Maybe we should change it from monthly, to weekly? Looking around most go for daily (which is my pref)

https://github.com/PyCQA/bandit/blob/main/.github/dependabot.yml#L7

FYI, I think this workflow isn't running because its in the wrong path. I opened issue #1055

[sigmavirus24]

Also if actions aren't run frequently enough, GitHub disables them so it may have disabled monthly dependabot

[ericwb]

FYI, created PR #1057 to repair the dependabot file and also update the checks to weekly.

[mportesdev]

Closing in favor of #1057