[v15] Remove account lockout from failed recovery attempts

[jentfoo]

v15 backport of PR #35325, conflicts were isolated to api/types/types.pb.go

changelog: Accounts are not locked after repeated recovery failures

[github-actions]

The PR changelog entry failed validation: Changelog entry not found in the PR body. Please add a "no-changelog" label to the PR, or changelog lines starting with changelog: followed by the changelog entries for the PR.

[github-actions]

🤖 Vercel preview here: https://docs-k6xf7mkhh-goteleport.vercel.app/docs/ver/preview

[jentfoo]

/excludeflake *

[zmb3]

/excludeflake *

[zmb3]

This is a little bit concerning - haven't seen this failure before:

time="2024-01-24T23:05:13Z" level=error msg="Application failed" error="signal: killed" test=TestIntegrationSSH/TestSSH
--- FAIL: TestIntegrationSSH (14.79s)
    --- FAIL: TestIntegrationSSH/TestSSH (14.79s)
        suite.go:[17](https://github.com/gravitational/teleport/actions/runs/7647288725/job/20837913467#step:7:18)3: 
            	Error Trace:	/__w/teleport/teleport/integrations/lib/testing/integration/suite.go:173
            	            				/opt/go/src/testing/testing.go:1169
            	            				/opt/go/src/testing/testing.go:1347
            	            				/opt/go/src/testing/testing.go:1589
            	Error:      	Received unexpected error:
            	            	signal: killed
            	Test:       	TestIntegrationSSH/TestSSH
FAIL
FAIL	github.com/gravitational/teleport/integrations/lib/testing/integration	[21](https://github.com/gravitational/teleport/actions/runs/7647288725/job/20837913467#step:7:22).642s
ok  	github.com/gravitational/teleport/integrations/lib/watcherjob	4.017s
FAIL

[jentfoo]

It's unclear how these changes would have impacted ssh, and it's not a failure I saw during the master PR.

So far the merge failure has been due to three different causes:

1. Network failure in MacOS Build
2. Go Unit test failure
3. Integration test failure you mentioned

So I believe it's all unrelated, and just bad luck. I will try again and see if we any of the failures become persistent. But let me know if you think there may be a possible interaction I am not considering. Thank you!