fix: docs/package.json & docs/yarn.lock to reduce vulnerabilities (#471)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-PATHTOREGEXP-7925106

Co-authored-by: snyk-bot <[email protected]>

docs/package.json

@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@astrojs/starlight": "^0.26.1",
-    "astro": "^4.15.5",
+    "astro": "^4.15.8",
     "sharp": "^0.33.1"
   }
 }

docs/yarn.lock

@@ -1273,10 +1273,10 @@ astro-expressive-code@^0.35.6:
   dependencies:
     rehype-expressive-code "^0.35.6"
 
-astro@^4.15.5:
-  version "4.15.6"
-  resolved "https://registry.yarnpkg.com/astro/-/astro-4.15.6.tgz#55d42fca5a68695174f5af85a8dcc5329264726a"
-  integrity sha512-SWcUNwm8CiVRaIbh4w5byh62BNihpsovlCd4ElvC7cL/53D24HcI7AaGFsPrromCamQklwQmIan/QS7x/3lLuQ==
+astro@^4.15.8:
+  version "4.15.8"
+  resolved "https://registry.yarnpkg.com/astro/-/astro-4.15.8.tgz#046190f8c9c719b278c13f5e8e35943bf178a7b2"
+  integrity sha512-pdXjtRF6O1xChiPAUF32R7oVRTW7AK1/Oy/JqPNhLfbelO0l6C7cLdSEuSLektwOEnMhOVXqccetjBs7HPaoxA==
   dependencies:
     "@astrojs/compiler" "^2.10.3"
     "@astrojs/internal-helpers" "0.4.1"
@@ -1324,7 +1324,6 @@ astro@^4.15.5:
     ora "^8.1.0"
     p-limit "^6.1.0"
     p-queue "^8.0.1"
-    path-to-regexp "6.2.2"
     preferred-pm "^4.0.0"
     prompts "^2.4.2"
     rehype "^13.0.1"
@@ -3178,11 +3177,6 @@ path-exists@^4.0.0:
   resolved "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz"
   integrity sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==
 
-[email protected]:
-  version "6.2.2"
-  resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-6.2.2.tgz#324377a83e5049cbecadc5554d6a63a9a4866b36"
-  integrity sha512-GQX3SSMokngb36+whdpRXE+3f9V8UzyAorlYvOGx87ufGHehNTn5lCxrKtLyZ4Yl/wEKnNnr98ZzOwwDZV5ogw==
-
 periscopic@^3.0.0:
   version "3.1.0"
   resolved "https://registry.npmjs.org/periscopic/-/periscopic-3.1.0.tgz"