Add `cooldown` settings for Dependabot #6785

Job	Run time
Go: tracing with legacy workflow (macos-latest, stable-v2.20.7)	7m 2s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.18.4)	1m 20s
Go: tracing with legacy workflow (macos-latest, nightly-latest)	6m 14s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.19.4)	1m 26s
Go: tracing with legacy workflow (macos-latest, stable-v2.21.4)	6m 50s
Go: tracing with legacy workflow (ubuntu-latest, default)	1m 15s
Go: tracing with legacy workflow (macos-latest, default)	8m 1s
Go: tracing with legacy workflow (macos-latest, linked)	7m 2s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.17.6)	1m 20s
Go: tracing with legacy workflow (ubuntu-latest, linked)	1m 4s
Go: tracing with legacy workflow (macos-latest, stable-v2.19.4)	5m 56s
Go: tracing with legacy workflow (macos-latest, stable-v2.18.4)	5m 23s
Go: tracing with legacy workflow (macos-latest, stable-v2.22.4)	6m 42s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.22.4)	1m 44s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.21.4)	1m 22s
Go: tracing with legacy workflow (ubuntu-latest, nightly-latest)	1m 11s
Go: tracing with legacy workflow (ubuntu-latest, stable-v2.20.7)	1m 17s
Go: tracing with legacy workflow (macos-latest, stable-v2.17.6)	5m 34s
	1h 10m 43s

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