fix(opentf): Follow renaming to opentofu

images/opentf/Earthfile

@@ -3,10 +3,10 @@ VERSION 0.7
 build:
     FROM ../mirror+golang
     WORKDIR /go-workdir
-    GIT CLONE https://github.com/opentffoundation/opentf.git ./
+    GIT CLONE https://github.com/opentofu/opentofu.git ./
     ENV CGO_ENABLED=0
     RUN go build -mod=readonly -trimpath
-    SAVE ARTIFACT ./opentf ./opentf
+    SAVE ARTIFACT ./opentofu ./opentf
 
 container-internal:
     FROM ../mirror+distroless-static