Updated OpenTofu to 1.10.8 to stay on latest minor release

Author: HeinanCA

cluster/images/provider-opentofu/Dockerfile

@@ -3,7 +3,7 @@ RUN apk --no-cache add ca-certificates bash git curl
 ARG TARGETOS
 ARG TARGETARCH
 
-ENV OPENTOFU_VERSION=1.10.7
+ENV OPENTOFU_VERSION=1.10.8
 ENV TF_IN_AUTOMATION=1
 ENV TF_PLUGIN_CACHE_DIR=/tofu/plugin-cache