infra: Remove '.py' from clang-tidy bots' recipe field.

🙄

Bug: 1005370
Change-Id: I4e73a9871572595520a908f347034cd8287c601b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1845798
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Auto-Submit: Ben Pastene <bpastene@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#703789}

infra/config/cr-buildbucket.cfg

@@ -484,7 +484,7 @@ builder_mixins {
 builder_mixins {
   name: "clang-tidy"
   recipe {
-    name: "tricium_analyze.py"
+    name: "tricium_analyze"
   }
 }
 

infra/config/generated/cr-buildbucket.cfg

@@ -484,7 +484,7 @@ builder_mixins {
 builder_mixins {
   name: "clang-tidy"
   recipe {
-    name: "tricium_analyze.py"
+    name: "tricium_analyze"
   }
 }