TestSlackbot flakiness

[nklaassen]

Failure

I hit this failure in the merge queue for branch/v13

Link(s) to logs

• https://github.com/gravitational/teleport/actions/runs/9201976957/job/25311051694

Relevant snippet

DEBU   File /__w/_temp/.teleport/teleport-ent-v12.1.0-linux-amd64-bin.tar.gz is occupied by another process, lets wait... test:TestSlackbot integration/download.go:179
DEBU   File /__w/_temp/.teleport/teleport-ent-v12.1.0-linux-amd64-bin.tar.gz is occupied by another process, lets wait... test:TestSlackbot integration/download.go:179
DEBU   File /__w/_temp/.teleport/teleport-ent-v12.1.0-linux-amd64-bin.tar.gz is occupied by another process, lets wait... test:TestSlackbot integration/download.go:179
    slack_test.go:84: 
        	Error Trace:	/__w/teleport/teleport/integrations/access/slack/slack_test.go:84
        	            				/go/pkg/mod/github.com/stretchr/testify@v1.9.0/suite/suite.go:157
        	            				/__w/teleport/teleport/integrations/access/slack/slack_test.go:66
        	Error:      	Received unexpected error:
        	            	context deadline exceeded
        	Test:       	TestSlackbot
--- FAIL: TestSlackbot (120.00s)