Set latest and 0.7 pinned version

Co-authored-by: Ivana Kellyer <[email protected]>

Author: cmanallen

tox.ini

@@ -545,7 +545,8 @@ deps =
     openai-notiktoken: openai
 
     # OpenFeature
-    openfeature-latest: openfeature-sdk~=0.7.1
+    openfeature-v0.7: openfeature-sdk~=0.7.1
+    openfeature-latest: openfeature-sdk
 
     # OpenTelemetry (OTel)
     opentelemetry: opentelemetry-distro