Update deprecated flag value
Update deprecated flag value

According to the User Manual, `standalone` is a deprecated value for the `--spawn_strategy` flag. This update the Remote Caching page to use the new value `local` instead.

Closes #9404.

PiperOrigin-RevId: 272398549

meteorcloudy/bazel,dslomov/bazel,ulfjack/bazel,aehlig/bazel,bazelbuild/bazel,safarmer/bazel,twitter-forks/bazel,aehlig/bazel,dslomov/bazel,davidzchen/bazel,katre/bazel,davidzchen/bazel,ButterflyNetwork/bazel,aehlig/bazel,aehlig/bazel,perezd/bazel,werkt/bazel,perezd/bazel,meteorcloudy/bazel,akira-baruah/bazel,davidzchen/bazel,meteorcloudy/bazel,cushon/bazel,ulfjack/bazel,dslomov/bazel,dslomov/bazel-windows,werkt/bazel,ulfjack/bazel,twitter-forks/bazel,ButterflyNetwork/bazel,perezd/bazel,werkt/bazel,dslomov/bazel-windows,werkt/bazel,davidzchen/bazel,dslomov/bazel-windows,safarmer/bazel,cushon/bazel,ButterflyNetwork/bazel,twitter-forks/bazel,cushon/bazel,ulfjack/bazel,cushon/bazel,dslomov/bazel-windows,bazelbuild/bazel,davidzchen/bazel,ulfjack/bazel,ulfjack/bazel,ulfjack/bazel,meteorcloudy/bazel,twitter-forks/bazel,twitter-forks/bazel,twitter-forks/bazel,akira-baruah/bazel,safarmer/bazel,davidzchen/bazel,bazelbuild/bazel,aehlig/bazel,davidzchen/bazel,dslomov/bazel,akira-baruah/bazel,katre/bazel,meteorcloudy/bazel,safarmer/bazel,werkt/bazel,katre/bazel,dslomov/bazel,dslomov/bazel-windows,ButterflyNetwork/bazel,safarmer/bazel,cushon/bazel,katre/bazel,perezd/bazel,ButterflyNetwork/bazel,perezd/bazel,aehlig/bazel,katre/bazel,bazelbuild/bazel,perezd/bazel,dslomov/bazel,twitter-forks/bazel,safarmer/bazel,cushon/bazel,dslomov/bazel,werkt/bazel,meteorcloudy/bazel,meteorcloudy/bazel,bazelbuild/bazel,perezd/bazel,akira-baruah/bazel,bazelbuild/bazel,akira-baruah/bazel,aehlig/bazel,ButterflyNetwork/bazel,katre/bazel,dslomov/bazel-windows,akira-baruah/bazel