chore(deps-dev): bump rake-compiler from 1.2.7 to 1.2.8 in /ruby-sdk (#92)

Author: dependabot[bot]

ruby-sdk/Gemfile.lock

@@ -18,7 +18,7 @@ GEM
     racc (1.8.1)
     rainbow (3.1.1)
     rake (13.2.1)
-    rake-compiler (1.2.7)
+    rake-compiler (1.2.8)
       rake
     rb_sys (0.9.102)
     regexp_parser (2.9.2)