ci/android: use --locked when installing nextest (#10467)

Author: cakebaker

util/android-commands.sh

@@ -534,7 +534,7 @@ snapshot() {
     # We need to install nextest via cargo currently, since there is no pre-built binary for android x86
     # explicitly set CARGO_TARGET_DIR as otherwise a random generated tmp directory is used,
     # which prevents incremental build for the retries.
-    command="export CARGO_TERM_COLOR=always && export CARGO_TARGET_DIR=\"cargo_install_target_dir\" && cargo install cargo-nextest"
+    command="export CARGO_TERM_COLOR=always && export CARGO_TARGET_DIR=\"cargo_install_target_dir\" && cargo install cargo-nextest --locked"
 
     run_with_retry 3 run_command_via_ssh "$command"
     return_code=$?