This installs /etc/systemd/system/swh-search-journal-client@{object-type}.service.d/parameters.conf to allow specific setup
```
$ $SWH_PUPPET_ENVIRONMENT_HOME/bin/octocatalog-diff --octocatalog-diff-args --no-truncate-details --to staging search0
...
*******************************************
File[/etc/systemd/system/swh-search-journal-client@.service] =>
parameters =>
content =>
@@ -8,4 +8,7 @@
_
[Service]
+Environment=SWH_SENTRY_DSN=https://swh::deploy::search::sentry_token@sentry.softwareheritage.org/15
+Environment=SWH_SENTRY_ENVIRONMENT=staging
+Environment=SWH_MAIN_PACKAGE=swh.search
User=swhstorage
Group=swhstorage
*******************************************
Systemd::Unit_file[swh-search-journal-client@.service] =>
parameters =>
content =>
@@ -8,4 +8,7 @@
_
[Service]
+Environment=SWH_SENTRY_DSN=https://swh::deploy::search::sentry_token@sentry.softwareheritage.org/15
+Environment=SWH_SENTRY_ENVIRONMENT=staging
+Environment=SWH_MAIN_PACKAGE=swh.search
User=swhstorage
Group=swhstorage
*******************************************
*** End octocatalog-diff on search0.internal.staging.swh.network
```