chore(deps): bump Google.Apis.Auth in /FirebaseAdmin (#403)

Author: dependabot[bot]

FirebaseAdmin/FirebaseAdmin.Snippets/FirebaseAdmin.Snippets.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Apis.Auth" Version="1.67.0" />
+    <PackageReference Include="Google.Apis.Auth" Version="1.68.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />

FirebaseAdmin/FirebaseAdmin.Tests/FirebaseAdmin.Tests.csproj

@@ -15,7 +15,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Google.Apis.Auth" Version="1.67.0" />
+    <PackageReference Include="Google.Apis.Auth" Version="1.68.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="System.Linq.Async" Version="6.0.1" />
     <PackageReference Include="xunit" Version="2.7.0" />

FirebaseAdmin/FirebaseAdmin/FirebaseAdmin.csproj

@@ -31,7 +31,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="All" />
     <PackageReference Include="Google.Api.Gax.Rest" Version="4.8.0" />
-    <PackageReference Include="Google.Apis.Auth" Version="1.67.0" />
+    <PackageReference Include="Google.Apis.Auth" Version="1.68.0" />
     <PackageReference Include="System.Collections.Immutable" Version="8.0.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556">
       <PrivateAssets>all</PrivateAssets>