[chore] bump modernc.org/sqlite to v1.29.8 (with our concurrency workaround) (#2855)

vendor/modernc.org/sqlite/doc.go

@@ -19,20 +19,20 @@
 //
 //	OS      Arch    SQLite version
 //	------------------------------
-//	darwin	amd64   3.45.2
-//	darwin	arm64   3.45.2
-//	freebsd	amd64   3.45.2
-//	freebsd	arm64   3.45.2
-//	linux	386     3.45.2
-//	linux	amd64   3.45.2
-//	linux	arm     3.45.2
-//	linux	arm64   3.45.2
-//	linux	loong64 3.45.2
-//	linux	ppc64le 3.45.2
-//	linux	riscv64 3.45.2
-//	linux	s390x   3.45.2
-//	windows	amd64   3.45.2
-//	windows	arm64   3.45.2
+//	darwin	amd64   3.45.3
+//	darwin	arm64   3.45.3
+//	freebsd	amd64   3.45.3
+//	freebsd	arm64   3.45.3
+//	linux	386     3.45.3
+//	linux	amd64   3.45.3
+//	linux	arm     3.45.3
+//	linux	arm64   3.45.3
+//	linux	loong64 3.45.3
+//	linux	ppc64le 3.45.3
+//	linux	riscv64 3.45.3
+//	linux	s390x   3.45.3
+//	windows	amd64   3.45.3
+//	windows	arm64   3.45.3
 //
 // # Builders
 //