chore: upgrade actions/checkout to v3, i.e. Node.js 16

[crenshaw-dev]

In response to the warning here: https://github.com/argoproj/argo-cd/actions/runs/3244579349

Node.js 12 actions are deprecated. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/. Please update the following actions to use Node.js 16: actions/checkout, actions/checkout

And here: https://github.com/argoproj/argo-cd/actions/runs/3229463955

Node.js 12 actions are deprecated. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/. Please update the following actions to use Node.js 16: actions/checkout, actions/setup-go, docker/setup-qemu-action, docker/setup-buildx-action, softprops/action-gh-release, docker/setup-buildx-action, actions/checkout

Unfortunately, there's no update for softprops/action-gh-release yet. softprops/action-gh-release#263

[codecov]

Codecov Report

Base: 45.82% // Head: 45.64% // Decreases project coverage by -0.18% ⚠️

Coverage data is based on head (de0f476) compared to base (eb9d0a5).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10947      +/-   ##
==========================================
- Coverage   45.82%   45.64%   -0.19%     
==========================================
  Files         236      237       +1     
  Lines       28700    28719      +19     
==========================================
- Hits        13152    13108      -44     
- Misses      13738    13808      +70     
+ Partials     1810     1803       -7     

Impacted Files	Coverage Δ
server/application/application.go	27.89% <0.00%> (-1.12%)	⬇️
pkg/apiclient/grpcproxy.go	0.00% <0.00%> (ø)
cmd/argocd/commands/account.go	0.00% <0.00%> (ø)
cmd/argocd/commands/bcrypt.go	76.47% <0.00%> (ø)
pkg/apiclient/apiclient.go	1.25% <0.00%> (+0.15%)	⬆️
server/application/terminal.go	12.75% <0.00%> (+1.43%)	⬆️

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[leoluz]

LGTM

[crenshaw-dev]

Cherry-picked onto release-2.2 for 2.2.16, release-2.3 for 2.3.11, release-2.4 for 2.4.16, and release-2.5 for 2.5.0-rc4.