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

Bumps [Google.Apis.Auth](https://github.com/googleapis/google-api-dotnet-client) from 1.67.0 to 1.68.0.
- [Release notes](https://github.com/googleapis/google-api-dotnet-client/releases)
- [Commits](googleapis/google-api-dotnet-client@v1.67.0...v1.68.0)

---
updated-dependencies:
- dependency-name: Google.Apis.Auth
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

FirebaseAdmin/FirebaseAdmin.Snippets/FirebaseAdmin.Snippets.csproj

@@ -1,28 +1,28 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFrameworks>net462;net6.0</TargetFrameworks>
-    <IsPackable>false</IsPackable>
-    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
-    <CodeAnalysisRuleSet>../../stylecop_test.ruleset</CodeAnalysisRuleSet>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Google.Apis.Auth" Version="1.67.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
-    <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
-    <PackageReference Include="System.Text.Json" Version="8.0.3" /> 
-    <PackageReference Include=" System.Security.Cryptography.Xml" Version="8.0.0" />
-    <PackageReference Include="System.Net.Http" Version="4.3.4" />
-    <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\FirebaseAdmin\FirebaseAdmin.csproj" />
-    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556">
-      <PrivateAssets>all</PrivateAssets>
-    </PackageReference>
-  </ItemGroup>
-
-</Project>
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFrameworks>net462;net6.0</TargetFrameworks>
+    <IsPackable>false</IsPackable>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <CodeAnalysisRuleSet>../../stylecop_test.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Google.Apis.Auth" Version="1.68.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
+    <PackageReference Include="System.Text.Json" Version="8.0.3" /> 
+    <PackageReference Include=" System.Security.Cryptography.Xml" Version="8.0.0" />
+    <PackageReference Include="System.Net.Http" Version="4.3.4" />
+    <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\FirebaseAdmin\FirebaseAdmin.csproj" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556">
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+  </ItemGroup>
+
+</Project>

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="17.9.0" />
     <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>