Bring River Python up to sqlc 1.26.0 (#24)

Let's match our sqlc versions across projects. Follow up [1] in River UI
and bring sqlc up to version 1.26.0.

[1] riverqueue/riverui#88

Author: brandur

.github/workflows/ci.yaml

@@ -142,7 +142,7 @@ jobs:
 
     env:
       BIN_PATH: /home/runner/bin
-      SQLC_VERSION: 1.25.0
+      SQLC_VERSION: 1.26.0
 
     steps:
       - name: Checkout

src/riverqueue/driver/riversqlalchemy/dbsqlc/models.py

@@ -1,6 +1,6 @@
 # Code generated by sqlc. DO NOT EDIT.
 # versions:
-#   sqlc v1.25.0
+#   sqlc v1.26.0
 import dataclasses
 import datetime
 import enum

src/riverqueue/driver/riversqlalchemy/dbsqlc/pg_misc.py

@@ -1,6 +1,6 @@
 # Code generated by sqlc. DO NOT EDIT.
 # versions:
-#   sqlc v1.25.0
+#   sqlc v1.26.0
 # source: pg_misc.sql
 from typing import Any
 

src/riverqueue/driver/riversqlalchemy/dbsqlc/river_job.py

@@ -1,6 +1,6 @@
 # Code generated by sqlc. DO NOT EDIT.
 # versions:
-#   sqlc v1.25.0
+#   sqlc v1.26.0
 # source: river_job.sql
 import dataclasses
 import datetime