Bump webmock from 3.19.1 to 3.20.0 in /updater (#978)

Bumps [webmock](https://github.com/bblimke/webmock) from 3.19.1 to 3.20.0.
- [Changelog](https://github.com/bblimke/webmock/blob/master/CHANGELOG.md)
- [Commits](bblimke/webmock@v3.19.1...v3.20.0)

---
updated-dependencies:
- dependency-name: webmock
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

updater/Gemfile.lock

@@ -20,10 +20,12 @@ GEM
     aws-sigv4 (1.8.0)
       aws-eventstream (~> 1, >= 1.0.2)
     base64 (0.2.0)
+    bigdecimal (3.1.6)
     citrus (3.0.2)
     commonmarker (0.23.10)
     concurrent-ruby (1.2.3)
-    crack (0.4.5)
+    crack (1.0.0)
+      bigdecimal
       rexml
     dependabot-bundler (0.242.1)
       dependabot-common (= 0.242.1)
@@ -126,7 +128,7 @@ GEM
     google-protobuf (3.25.2-x86_64-linux)
     googleapis-common-protos-types (1.11.0)
       google-protobuf (~> 3.18)
-    hashdiff (1.0.1)
+    hashdiff (1.1.0)
     http (5.2.0)
       addressable (~> 2.8)
       base64 (~> 0.1)
@@ -261,7 +263,7 @@ GEM
       citrus (~> 3.0, > 3.0)
     unicode-display_width (2.5.0)
     vcr (6.2.0)
-    webmock (3.19.1)
+    webmock (3.20.0)
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)