Configure squawk rules (#16144)

Marshall Bowers created 

This PR configures [`squawk`](https://squawkhq.com/) to match our
database conventions.

Release Notes:

- N/A

Change summary

script/lib/squawk.toml | 6 ++++++
script/squawk          | 4 ++--
2 files changed, 8 insertions(+), 2 deletions(-)

Detailed changes

script/lib/squawk.toml 🔗 

@@ -1,4 +1,10 @@
 excluded_rules = [
+    # We use `serial` already, no point changing now.
+    "prefer-identity",
+
+    # We store timestamps in UTC, so we don't care about the timezone.
+    "prefer-timestamptz",
+
     "prefer-big-int",
     "prefer-bigint-over-int",
 ]

script/squawk 🔗 

@@ -28,7 +28,7 @@ if [ -n "$SQUAWK_GITHUB_TOKEN" ]; then
     export SQUAWK_GITHUB_REPO_NAME=$(echo $GITHUB_REPOSITORY | awk -F/ '{print $2}')
     export SQUAWK_GITHUB_PR_NUMBER=$(echo $GITHUB_REF | awk 'BEGIN { FS = "/" } ; { print $3 }')
 
-    $SQUAWK_BIN $SQUAWK_ARGS upload-to-github $(git diff --name-only origin/$GITHUB_BASE_REF...origin/$GITHUB_HEAD_REF 'crates/collab/migrations/*.sql')
+    $SQUAWK_BIN $SQUAWK_ARGS upload-to-github $(git diff --name-only origin/$GITHUB_BASE_REF...origin/$GITHUB_HEAD_REF 'crates/collab/migrations/*.sql' 'crates/collab/migrations_llm/*.sql')
 else
-    $SQUAWK_BIN $SQUAWK_ARGS $(git ls-files --others crates/collab/migrations/*.sql) $(git diff --name-only main crates/collab/migrations/*.sql)
+    $SQUAWK_BIN $SQUAWK_ARGS $(git ls-files --others crates/collab/migrations/*.sql crates/collab/migrations_llm/*.sql) $(git diff --name-only main crates/collab/migrations/*.sql crates/collab/migrations_llm/*.sql)
 fi