Pin Bundler to 1.17.3 to avoid using 2.x

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>
5 jobs for <span class="ref-name">437-pin-bundler-with-1-17-3-in-ci</span> in 18 minutes and 53 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
manual #141737572
allowed to fail manual
build:image
 
  Test
passed #141737573
allowed to fail
code_quality

00:05:30

passed #141737574
allowed to fail
container_scanning

00:04:03

passed #141737575
test:install

00:18:37

passed #141737576
test:update

00:18:52