remove system sqlite3 dependency - zqlite bundles it

.tangled/workflows/ci.yml

···
 dependencies:
   nixpkgs:
     - zig
-    - sqlite
 
 steps:
   - name: check formatting

build.zig

···
     });
 
     exe.linkLibC();
-    exe.linkSystemLibrary("sqlite3");
 
     b.installArtifact(exe);