Bump govuk_tech_docs from 5.1.0 to 5.1.1

Bumps [govuk_tech_docs](https://github.com/alphagov/tech-docs-gem) from 5.1.0 to 5.1.1.
- [Release notes](https://github.com/alphagov/tech-docs-gem/releases)
- [Changelog](https://github.com/alphagov/tech-docs-gem/blob/main/CHANGELOG.md)
- [Commits](alphagov/tech-docs-gem@v5.1.0...v5.1.1)

---
updated-dependencies:
- dependency-name: govuk_tech_docs
  dependency-version: 5.1.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Gemfile.lock

@@ -13,14 +13,14 @@ GEM
       execjs (~> 2)
     backports (3.25.1)
     base64 (0.3.0)
-    bigdecimal (3.2.2)
+    bigdecimal (3.2.3)
     chronic (0.10.2)
     chunky_png (1.4.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    commonmarker (0.23.11)
+    commonmarker (0.23.12)
     compass (1.0.3)
       chunky_png (~> 1.2)
       compass-core (~> 1.0.2)
@@ -46,10 +46,10 @@ GEM
     fast_blank (1.0.1)
     fastimage (2.4.0)
     ffi (1.17.2)
-    google-protobuf (4.31.1)
+    google-protobuf (4.32.1)
       bigdecimal
       rake (>= 13)
-    govuk_tech_docs (5.1.0)
+    govuk_tech_docs (5.1.1)
       autoprefixer-rails (~> 10.2)
       base64
       bigdecimal
@@ -149,7 +149,7 @@ GEM
     minitest (5.25.5)
     multi_json (1.17.0)
     mutex_m (0.3.0)
-    nokogiri (1.18.9)
+    nokogiri (1.18.10)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     openapi3_parser (0.9.2)
@@ -177,7 +177,7 @@ GEM
       ffi (~> 1.0)
     redcarpet (3.6.1)
     regexp_parser (2.11.2)
-    rexml (3.4.2)
+    rexml (3.4.4)
     rouge (3.30.0)
     rubocop (1.79.2)
       json (~> 2.3)
@@ -217,7 +217,7 @@ GEM
       rubocop (~> 1.72, >= 1.72.1)
     ruby-progressbar (1.13.0)
     sass (3.4.25)
-    sass-embedded (1.89.2)
+    sass-embedded (1.93.2)
       google-protobuf (~> 4.31)
       rake (>= 13)
     sassc (2.4.0)