Bump randomstring from 1.2.2 to 1.3.0 in /web #15297

Job	Run time
generate-tag	4s
can-run-ci	1s
enable-tests	1s
build-kots-helm	10s
deps-kots	23s
deps-web	1m 8s
push-minio	18s
build-e2e	1m 58s
push-dex	15s
push-rqlite	13s
kurl-addon-changes-filter	3s
cmx-versions	11s
build-kurl-proxy	2m 59s
build-migrations	2m 7s
build-kotsadm	7m 27s
vet-kots	3m 19s
ci-test-kots	4m 23s
lint-web	1m 7s
unit-test-web	28s
build-web	2m 1s
build-kots	2m 45s
validate-registry-check (kind, v1.28.0)	3m 1s
validate-kurl-addon	0s
validate-pr-tests	1s
validate-success	1s
dependabot	0s
	34m 24s

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