Fix Issue 2682 - Homepage referenced in deb metadata is incorrect (dotnet/core-setup#2684)

Commit migrated from https://github.com/dotnet/core-setup/commit/1f58b23bc6e8168c6ae54a102c93e2ed18adfcd5

src/installer/pkg/packaging/deb/dotnet-hostfxr-debian_config.json

@@ -7,7 +7,7 @@
 
     "short_description": "%HOSTFXR_BRAND_NAME% %HOSTFXR_NUGET_VERSION%",
     "long_description": ".NET Core is a development platform that you can use to build command-line applications, microservices and modern websites. It is open source, cross-platform and is supported by Microsoft. We hope you enjoy using it! If you do, please consider joining the active community of developers that are contributing to the project on GitHub (https://github.com/dotnet/core). We happily accept issues and PRs.",
-    "homepage": "https://dotnet.github.io/core",
+    "homepage": "https://dotnet.github.io",
 
     "release":{
         "package_version":"1.0.0.0",

src/installer/pkg/packaging/deb/dotnet-sharedframework-debian_config.json

@@ -7,7 +7,7 @@
 
     "short_description": "%SHARED_FRAMEWORK_BRAND_NAME% %SHARED_FRAMEWORK_NUGET_NAME% %SHARED_FRAMEWORK_NUGET_VERSION%",
     "long_description": ".NET Core is a development platform that you can use to build command-line applications, microservices and modern websites. It is open source, cross-platform and is supported by Microsoft. We hope you enjoy using it! If you do, please consider joining the active community of developers that are contributing to the project on GitHub (https://github.com/dotnet/core). We happily accept issues and PRs.",
-    "homepage": "https://dotnet.github.io/core",
+    "homepage": "https://dotnet.github.io",
 
     "release":{
         "package_version":"1.0.0.0",

src/installer/pkg/packaging/deb/dotnet-sharedhost-debian_config.json

@@ -7,7 +7,7 @@
 
     "short_description": "%SHARED_HOST_BRAND_NAME%",
     "long_description": ".NET Core is a development platform that you can use to build command-line applications, microservices and modern websites. It is open source, cross-platform and is supported by Microsoft. We hope you enjoy using it! If you do, please consider joining the active community of developers that are contributing to the project on GitHub (https://github.com/dotnet/core). We happily accept issues and PRs.",
-    "homepage": "https://dotnet.github.io/core",
+    "homepage": "https://dotnet.github.io",
 
     "release":{
         "package_version":"1.0.0.0",