[performance] update storage backend and make use of seek syscall when available (#2924)

* update to use go-storage/ instead of go-store/v2/storage/

* pull in latest version from codeberg

* remove test output 😇

* add code comments

* set the exclusive bit when creating new files in disk config

* bump to actual release version

* bump to v0.1.1 (tis a simple no-logic change)

* update readme

* only use a temporary read seeker when decoding video if required (should only be S3 now)

* use fastcopy library to use memory pooled buffers when calling TempFileSeeker()

* update to use seek call in serveFileRange()

cmd/gotosocial/action/admin/media/prune/common.go

@@ -80,10 +80,6 @@ func setupPrune(ctx context.Context) (*prune, error) {
 func (p *prune) shutdown() error {
 	errs := gtserror.NewMultiError(2)
 
-	if err := p.storage.Close(); err != nil {
-		errs.Appendf("error closing storage backend: %w", err)
-	}
-
 	if err := p.dbService.Close(); err != nil {
 		errs.Appendf("error stopping database: %w", err)
 	}