Update to snappy v0.8.1

go.mod

@@ -3,6 +3,8 @@ module git.ekzyis.com/ekzyis/unpaywall
 go 1.21.0
 
 require (
-	github.com/ekzyis/snappy v0.5.3
+	github.com/ekzyis/snappy v0.8.1
 	github.com/mattn/go-sqlite3 v1.14.17
 )
+
+require gopkg.in/guregu/null.v4 v4.0.0 // indirect

go.sum

@@ -1,4 +1,6 @@
-github.com/ekzyis/snappy v0.5.3 h1:Pq8b2s4WPz5gnHgCoZR2LVqArEVqWeVCyHSVZCawat4=
-github.com/ekzyis/snappy v0.5.3/go.mod h1:BxJwdGlCwUw0Q5pQzBr59weAIS6pkVdivBBaZkkWTSo=
+github.com/ekzyis/snappy v0.8.1 h1:W0PWf8ZIOg4w5tiVjtPMDhQslibeWDKNkVfle2BfOrU=
+github.com/ekzyis/snappy v0.8.1/go.mod h1:UksYI0dU0+cnzz0LQjWB1P0QQP/ghx47e4atP99a5Lk=
 github.com/mattn/go-sqlite3 v1.14.17 h1:mCRHCLDUBXgpKAqIKsaAaAsrAlbkeomtRFKXh2L6YIM=
 github.com/mattn/go-sqlite3 v1.14.17/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
+gopkg.in/guregu/null.v4 v4.0.0 h1:1Wm3S1WEA2I26Kq+6vcW+w0gcDo44YKYD7YIEJNHDjg=
+gopkg.in/guregu/null.v4 v4.0.0/go.mod h1:YoQhUrADuG3i9WqesrCmpNRwm1ypAgSHYqoOcTu/JrI=