downgrade sass package, fixed all warnings

cause @latest(5.3.3) bootstrap doesnt support
breaking changes in sass 1.77.7 and 1.77.8
twbs/bootstrap#40621 (comment)

package.json

@@ -27,7 +27,7 @@
         "prop-types": "^15.8.1",
         "purgecss-webpack-plugin": "^6.0.0",
         "regenerator-runtime": "^0.14.0",
-        "sass": "^1.77.8",
+        "sass": "1.77.6",
         "sass-loader": "^16.0.0",
         "source-map-loader": "^4.0.0",
         "style-loader": "^4.0.0",

yarn.lock

@@ -6341,10 +6341,10 @@ sass-loader@^16.0.0:
   dependencies:
     neo-async "^2.6.2"
 
-sass@^1.77.8:
-  version "1.77.8"
-  resolved "https://registry.yarnpkg.com/sass/-/sass-1.77.8.tgz#9f18b449ea401759ef7ec1752a16373e296b52bd"
-  integrity sha512-4UHg6prsrycW20fqLGPShtEvo/WyHRVRHwOP4DzkUrObWoWI05QBSfzU71TVB7PFaL104TwNaHpjlWXAZbQiNQ==
+sass@1.77.6:
+  version "1.77.6"
+  resolved "https://registry.yarnpkg.com/sass/-/sass-1.77.6.tgz#898845c1348078c2e6d1b64f9ee06b3f8bd489e4"
+  integrity sha512-ByXE1oLD79GVq9Ht1PeHWCPMPB8XHpBuz1r85oByKHjZY6qV6rWnQovQzXJXuQ/XyE1Oj3iPk3lo28uzaRA2/Q==
   dependencies:
     chokidar ">=3.0.0 <4.0.0"
     immutable "^4.0.0"