Use unqualified path to bundler

So users can run it locally when they have `bundler` installed
as debian package.

diff --git a/tests/platform-ci/setup.sh b/tests/platform-ci/setup.sh
index e92dddc..c10cb4c 100755 (executable)
--- a/tests/platform-ci/setup.sh
+++ b/tests/platform-ci/setup.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
 
 which bundle || /usr/bin/apt install bundle
-/usr/local/bin/bundle install --binstubs --path=vendor --with=test --jobs "$(nproc)"
-/usr/local/bin/bundle exec leap -v2 --yes help
+bundle install --binstubs --path=vendor --with=test --jobs "$(nproc)"
+bundle exec leap -v2 --yes help