modify configuration files for release-drafter for v7.0.x

.github/release-drafter-dev-6.2.x.yml → .github/release-drafter-dev-7.0.x.yml

@@ -4,4 +4,4 @@ prerelease: true
 
 # Filter previous releases to consider only those with the tags starts with 'v6.2'
 include-pre-releases: true
-tag-prefix: v6.2
+tag-prefix: v7.0