Post-release of v8.1.8 by @rtyley: set snapshot version

gu-scala-library-release[bot] · web-flow · commit 454d33ccf716 · 2025-07-01T10:57:50.000Z
Setting snapshot version after @rtyley published https://github.com/guardian/etag-caching/releases/tag/v8.1.8
diff --git a/version.sbt b/version.sbt
@@ -1 +1 @@
-ThisBuild / version := "8.1.8"
+ThisBuild / version := "8.1.9-SNAPSHOT"
