deps: update actions/checkout digest to 11bd719 (#919) #1488

Job	Run time
build (8, java-bigquery, test)	2m 14s
javadoc-with-doclet (java-bigtable)	1m 14s
build (8, java-bigquery, lint)	1m 0s
javadoc-with-doclet (java-bigquery)	1m 26s
build (8, java-bigquery, clirr)	1m 11s
javadoc-with-doclet (java-storage)	1m 18s
build (8, java-bigquery, javadoc)	1m 12s
javadoc-with-doclet (java-storage-nio)	1m 5s
build (8, java-bigquery, javadoc-with-doclet)	52s
javadoc-with-doclet (java-spanner)	1m 30s
build (8, java-bigtable, test)	2m 51s
javadoc-with-doclet (java-spanner-jdbc)	1m 4s
build (8, java-bigtable, lint)	1m 22s
javadoc-with-doclet (java-pubsub)	1m 14s
build (8, java-bigtable, clirr)	1m 21s
javadoc-with-doclet (java-pubsublite)	1m 8s
build (8, java-bigtable, javadoc)	2m 8s
javadoc-with-doclet (java-logging)	1m 12s
build (8, java-bigtable, javadoc-with-doclet)	1m 12s
javadoc-with-doclet (java-logging-logback)	56s
build (11, java-bigquery, test)	2m 55s
javadoc-with-doclet (java-firestore)	1m 28s
build (11, java-bigquery, lint)	1m 10s
javadoc-with-doclet (java-datastore)	2m 3s
build (11, java-bigquery, clirr)	1m 4s
build (11, java-bigquery, javadoc)	1m 8s
build (11, java-bigquery, javadoc-with-doclet)	1m 17s
javadoc-with-doclet (java-bigquerystorage)	1m 35s
build (11, java-bigtable, test)	3m 5s
build (11, java-bigtable, lint)	1m 35s
build (11, java-bigtable, clirr)	1m 26s
build (11, java-bigtable, javadoc)	2m 29s
build (11, java-bigtable, javadoc-with-doclet)	1m 20s
	50m 5s

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