Bug 32609: Use the current yarn.lock to generate node_modules

See comment 34 and https://tree.taiga.io/project/joubu-koha-erm/us/127

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>

build-resources.PL

@@ -32,7 +32,7 @@ This helper script ensures that src JS and SCSS files are compiled for packaging
 
 =cut
 
-my $install_command = "yarn install";
+my $install_command = "yarn install --frozen-lockfile";
 system($install_command);
 
 my $build_command = "yarn build:prod";