Drop EOL Ruby versions from matrix, update pry for 3.4 compatibility

Trims CI matrix to 3.2/3.3/3.4 (2.6, 2.7, and 3.0 are all EOL).
Updates pry-byebug 3.9.0 -> 3.12.0 and pry 0.13.1 -> 0.16.0, which
resolves the DidYouMean::SPELL_CHECKERS crash on Ruby 3.4.

Author: git-wright

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.6', '2.7', '3.0', '3.2', '3.3', '3.4']
+        ruby-version: ['3.2', '3.3', '3.4']
 
     env:
       PUSHER_INSTANCE_ID: 1b880590-6301-4bb5-b34f-45db1c5f5644

Gemfile.lock

@@ -11,7 +11,8 @@ GEM
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     ast (2.4.2)
-    byebug (11.1.3)
+    byebug (13.0.0)
+      reline (>= 0.6.0)
     codecov (0.2.12)
       json
       simplecov
@@ -33,27 +34,31 @@ GEM
     http-accept (1.7.0)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
+    io-console (0.8.2)
     json (2.5.1)
     jwt (2.2.2)
-    method_source (1.0.0)
+    method_source (1.1.0)
     mime-types (3.3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2021.0225)
     netrc (0.11.0)
     parallel (1.20.1)
     parser (3.0.0.0)
       ast (~> 2.4.1)
-    pry (0.13.1)
+    pry (0.16.0)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    pry-byebug (3.9.0)
-      byebug (~> 11.0)
-      pry (~> 0.13.0)
+      reline (>= 0.6.0)
+    pry-byebug (3.12.0)
+      byebug (~> 13.0)
+      pry (>= 0.13, < 0.17)
     public_suffix (4.0.6)
     rainbow (3.0.0)
     rake (13.0.3)
     rb-readline (0.5.5)
     regexp_parser (2.1.1)
+    reline (0.6.3)
+      io-console (~> 0.5)
     rest-client (2.1.0)
       http-accept (>= 1.7.0, < 2.0)
       http-cookie (>= 1.0.2, < 2.0)