Replace .join with /

The paths in LUCI got updated to pathlib.Path which don't have .join
method

Generated files got updated by running the commands in README.

Google-Bug-Id: b/365565157
Release-Notes: skip
Change-Id: I313ccfbfac0d4ddb9af09b4d2b0e4884ea18d280

generated/commit-queue.cfg

diff --git a/generated/commit-queue.cfg b/generated/commit-queue.cfg
index 1182744..595b72b 100644
--- a/generated/commit-queue.cfg
+++ b/generated/commit-queue.cfg
@@ -25,6 +25,7 @@
         location_filters {
           gerrit_host_regexp: ".*"
           gerrit_project_regexp: ".*"
+          gerrit_ref_regexp: ".*"
           path_regexp: "polygerrit-ui/.+"
         }
         mode_allowlist: "DRY_RUN"

generated/project.cfg

diff --git a/generated/project.cfg b/generated/project.cfg
index fa19dff..e550dde 100644
--- a/generated/project.cfg
+++ b/generated/project.cfg
@@ -7,7 +7,7 @@
 name: "gerrit"
 access: "group:all"
 lucicfg {
-  version: "1.40.0"
+  version: "1.43.13"
   package_dir: ".."
   config_dir: "generated"
   entry_point: "main.star"

recipes/recipes/gerrit.py

diff --git a/recipes/recipes/gerrit.py b/recipes/recipes/gerrit.py
index db8b999..989eb16 100644
--- a/recipes/recipes/gerrit.py
+++ b/recipes/recipes/gerrit.py
@@ -89,7 +89,7 @@
         api.gsutil.download(gs_bucket, '%s/%s' %
                             (gs_path, version_file), chrome)
         version = api.file.read_text('read latest chrome version',
-                                     chrome.join(version_file))
+                                     chrome / version_file)
         api.gsutil.download(gs_bucket, '%s/%s/%s' %
                             (gs_path, version, chrome_zip), chrome)
         api.zip.unzip('unzip chrome', chrome / chrome_zip, chrome / 'zip')