fix: add || true to all prepare commands in run.sh

The pnpm prepare command failed with a non-zero exit code, which caused
hyperfine to abort the entire benchmark suite. Only npm, nx, turbo, and
node had '|| true' appended to their prepare commands.

This adds '|| true' to ALL prepare commands (yarn, berry, zpm, pnpm,
vlt, bun, deno, vp) so that a transient install failure during the
prepare step doesn't kill the entire task runner benchmark.

hyperfine's --ignore-failure only applies to the measured command, not
to --prepare commands, so || true is needed to prevent suite-wide
failures from transient install issues.

Author: baudbot-agent

scripts/variations/run.sh

@@ -55,21 +55,21 @@ hyperfine --ignore-failure \
   --cleanup="bash $BENCH_SCRIPTS/clean-helpers.sh clean_all" \
   ${BENCH_INCLUDE_NPM:+--prepare="$BENCH_INSTALL_PREPARE_NPM || true"} \
   ${BENCH_INCLUDE_NPM:+--command-name="npm" "$BENCH_COMMAND_NPM"} \
-  ${BENCH_INCLUDE_YARN:+--prepare="$BENCH_INSTALL_PREPARE_YARN"} \
+  ${BENCH_INCLUDE_YARN:+--prepare="$BENCH_INSTALL_PREPARE_YARN || true"} \
   ${BENCH_INCLUDE_YARN:+--command-name="yarn" "$BENCH_COMMAND_YARN"} \
-  ${BENCH_INCLUDE_BERRY:+--prepare="$BENCH_INSTALL_PREPARE_BERRY"} \
+  ${BENCH_INCLUDE_BERRY:+--prepare="$BENCH_INSTALL_PREPARE_BERRY || true"} \
   ${BENCH_INCLUDE_BERRY:+--command-name="berry" "$BENCH_COMMAND_BERRY"} \
-  ${BENCH_INCLUDE_ZPM:+--prepare="$BENCH_INSTALL_PREPARE_ZPM"} \
+  ${BENCH_INCLUDE_ZPM:+--prepare="$BENCH_INSTALL_PREPARE_ZPM || true"} \
   ${BENCH_INCLUDE_ZPM:+--command-name="zpm" "$BENCH_COMMAND_ZPM"} \
-  ${BENCH_INCLUDE_PNPM:+--prepare="$BENCH_INSTALL_PREPARE_PNPM"} \
+  ${BENCH_INCLUDE_PNPM:+--prepare="$BENCH_INSTALL_PREPARE_PNPM || true"} \
   ${BENCH_INCLUDE_PNPM:+--command-name="pnpm" "$BENCH_COMMAND_PNPM"} \
-  ${BENCH_INCLUDE_VLT:+--prepare="$BENCH_INSTALL_PREPARE_VLT"} \
+  ${BENCH_INCLUDE_VLT:+--prepare="$BENCH_INSTALL_PREPARE_VLT || true"} \
   ${BENCH_INCLUDE_VLT:+--command-name="vlt" "$BENCH_COMMAND_VLT"} \
-  ${BENCH_INCLUDE_BUN:+--prepare="$BENCH_INSTALL_PREPARE_BUN"} \
+  ${BENCH_INCLUDE_BUN:+--prepare="$BENCH_INSTALL_PREPARE_BUN || true"} \
   ${BENCH_INCLUDE_BUN:+--command-name="bun" "$BENCH_COMMAND_BUN"} \
-  ${BENCH_INCLUDE_DENO:+--prepare="$BENCH_INSTALL_PREPARE_DENO"} \
+  ${BENCH_INCLUDE_DENO:+--prepare="$BENCH_INSTALL_PREPARE_DENO || true"} \
   ${BENCH_INCLUDE_DENO:+--command-name="deno" "$BENCH_COMMAND_DENO"} \
-  ${BENCH_INCLUDE_VP:+--prepare="$BENCH_INSTALL_PREPARE_VP"} \
+  ${BENCH_INCLUDE_VP:+--prepare="$BENCH_INSTALL_PREPARE_VP || true"} \
   ${BENCH_INCLUDE_VP:+--command-name="vp" "$BENCH_COMMAND_VP"} \
   ${BENCH_INCLUDE_NX:+--prepare="$BENCH_INSTALL_PREPARE_NPM || true"} \
   ${BENCH_INCLUDE_NX:+--command-name="nx" "$BENCH_COMMAND_NX"} \