[experiment] add alternative wasm sqlite3 implementation available via build-tag (#2863)

This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).

vendor/github.com/ncruces/go-sqlite3/vfs/lock_other.go

@@ -0,0 +1,23 @@
+//go:build !(linux || darwin || windows || freebsd || openbsd || netbsd || dragonfly || illumos || sqlite3_flock) || sqlite3_nosys
+
+package vfs
+
+// SupportsFileLocking is false on platforms that do not support file locking.
+// To open a database file on those platforms,
+// you need to use the [nolock] or [immutable] URI parameters.
+//
+// [nolock]: https://sqlite.org/uri.html#urinolock
+// [immutable]: https://sqlite.org/uri.html#uriimmutable
+const SupportsFileLocking = false
+
+func (f *vfsFile) Lock(LockLevel) error {
+	return _IOERR_LOCK
+}
+
+func (f *vfsFile) Unlock(LockLevel) error {
+	return _IOERR_UNLOCK
+}
+
+func (f *vfsFile) CheckReservedLock() (bool, error) {
+	return false, _IOERR_CHECKRESERVEDLOCK
+}