chore(deps): update sourcegraph docker insiders images

[renovate]

This PR contains the following updates:

Package	Update	Change
index.docker.io/sourcegraph/alpine-3.14	digest	a668ce6 -> 982220e
index.docker.io/sourcegraph/blobstore	digest	684d53d -> bd5e1e2
index.docker.io/sourcegraph/cadvisor	digest	2c8b236 -> 775a22b
index.docker.io/sourcegraph/codeinsights-db	digest	7f40a4b -> c4a1bd3
index.docker.io/sourcegraph/codeintel-db	digest	a6580b2 -> 1e0e936
index.docker.io/sourcegraph/dind	digest	36fe8ab -> da2ab73
index.docker.io/sourcegraph/embeddings	digest	34c00b0 -> a6feb02
index.docker.io/sourcegraph/executor	digest	60942ce -> da6653e
index.docker.io/sourcegraph/executor-kubernetes	digest	2ec90f8 -> 42951c7
index.docker.io/sourcegraph/frontend	digest	cebf59b -> 51ca50f
index.docker.io/sourcegraph/gitserver	digest	6fcb988 -> 6782141
index.docker.io/sourcegraph/grafana	digest	996c766 -> 4492ae6
index.docker.io/sourcegraph/indexed-searcher	digest	b51bdb9 -> 65acfb9
index.docker.io/sourcegraph/jaeger-all-in-one	digest	e796d36 -> 3b7d972
index.docker.io/sourcegraph/migrator	digest	1c0aced -> 85d81c0
index.docker.io/sourcegraph/node-exporter	digest	5bbf1ae -> a43c3f5
index.docker.io/sourcegraph/opentelemetry-collector	digest	9053833 -> 918f229
index.docker.io/sourcegraph/postgres-12-alpine	digest	a6580b2 -> 1e0e936
index.docker.io/sourcegraph/postgres_exporter	digest	6a42b04 -> 7bc7271
index.docker.io/sourcegraph/precise-code-intel-worker	digest	c1a50df -> 049d91c
index.docker.io/sourcegraph/prometheus	digest	9643935 -> b51607c
index.docker.io/sourcegraph/redis-cache	digest	cf06708 -> 7b5f450
index.docker.io/sourcegraph/redis-store	digest	0424488 -> be2c0f4
index.docker.io/sourcegraph/redis_exporter	digest	4db2591 -> e5c3085
index.docker.io/sourcegraph/repo-updater	digest	3e29e52 -> 7b23c97
index.docker.io/sourcegraph/search-indexer	digest	5ce0c34 -> 29b6863
index.docker.io/sourcegraph/searcher	digest	e9bbf7c -> fd43bdc
index.docker.io/sourcegraph/symbols	digest	413f1bc -> c36923f
index.docker.io/sourcegraph/syntax-highlighter	digest	341c8bd -> 13a3d61
index.docker.io/sourcegraph/worker	digest	aead307 -> fcdb703

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