Update dependency capybara to v3.39.0 (#2429)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| capybara | minor | `3.37.1` -> `3.39.0` |

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playbook-website/Gemfile.lock

@@ -73,8 +73,8 @@ GEM
       minitest (>= 5.1)
       tzinfo (~> 2.0)
       zeitwerk (~> 2.3)
-    addressable (2.8.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.2)
+      public_suffix (>= 2.0.2, < 6.0)
     archive-zip (0.12.0)
       io-like (~> 0.3.0)
     ast (2.4.2)
@@ -93,7 +93,7 @@ GEM
       msgpack (~> 1.2)
     builder (3.2.4)
     byebug (11.1.3)
-    capybara (3.37.1)
+    capybara (3.39.0)
       addressable
       matrix
       mini_mime (>= 0.1.3)
@@ -208,7 +208,7 @@ GEM
       railties (>= 3.2)
       tilt
     redcarpet (3.6.0)
-    regexp_parser (2.5.0)
+    regexp_parser (2.7.0)
     rexml (3.2.5)
     rouge (3.30.0)
     rubocop (1.36.0)