Update dependency rspec to v3.13.0

Author: renovate[bot]

Gemfile.lock

@@ -8,7 +8,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     coderay (1.1.3)
-    diff-lcs (1.4.4)
+    diff-lcs (1.5.1)
     google-protobuf (3.13.0)
     googleapis-common-protos-types (1.0.5)
       google-protobuf (~> 3.11)
@@ -20,19 +20,19 @@ GEM
       coderay (~> 1.1)
       method_source (~> 1.0)
     rake (13.0.3)
-    rspec (3.9.0)
-      rspec-core (~> 3.9.0)
-      rspec-expectations (~> 3.9.0)
-      rspec-mocks (~> 3.9.0)
-    rspec-core (3.9.2)
-      rspec-support (~> 3.9.3)
-    rspec-expectations (3.9.2)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.0)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.2)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
-    rspec-mocks (3.9.1)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
-    rspec-support (3.9.3)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.1)
 
 PLATFORMS
   ruby