[release/5.0] Rebrand for v5.0.8 and get builds working (#33198)

* [release/5.9] Update branding to v5.0.8
  - disable baseline validation
* [release/5.0] Update cert that became valid and broke tests
  - backport of 2e20bab (#32812)
  - dupe of #33033
    * Update cert to not be valid for 50 years
    * Make cert valid in 10 years
    * Delete unused copy of certs, update right one
    * Skip test for now
* [release/5.0] Update Chrome driver
  - backport of e7b5aa6 (#33019)
* [release/5.0] Update selenium chrome driver
  - backport of af96aba (#33043)

Author: dougbu

eng/Versions.props

@@ -8,8 +8,8 @@
   <PropertyGroup Label="Version settings">
     <AspNetCoreMajorVersion>5</AspNetCoreMajorVersion>
     <AspNetCoreMinorVersion>0</AspNetCoreMinorVersion>
-    <AspNetCorePatchVersion>7</AspNetCorePatchVersion>
-    <ValidateBaseline>true</ValidateBaseline>
+    <AspNetCorePatchVersion>8</AspNetCorePatchVersion>
+    <ValidateBaseline>false</ValidateBaseline>
     <!--
         When StabilizePackageVersion is set to 'true', this branch will produce stable outputs for 'Shipping' packages
     -->
@@ -268,7 +268,7 @@
     <NewtonsoftJsonPackageVersion>12.0.2</NewtonsoftJsonPackageVersion>
     <NSwagApiDescriptionClientPackageVersion>13.0.4</NSwagApiDescriptionClientPackageVersion>
     <SeleniumSupportPackageVersion>4.0.0-beta1</SeleniumSupportPackageVersion>
-    <SeleniumWebDriverChromeDriverPackageVersion>89.0.4389.2300-beta</SeleniumWebDriverChromeDriverPackageVersion>
+    <SeleniumWebDriverChromeDriverPackageVersion>91.0.4472.1900-beta</SeleniumWebDriverChromeDriverPackageVersion>
     <SeleniumWebDriverPackageVersion>4.0.0-beta1</SeleniumWebDriverPackageVersion>
     <SerilogExtensionsLoggingPackageVersion>1.4.0</SerilogExtensionsLoggingPackageVersion>
     <SerilogSinksFilePackageVersion>4.0.0</SerilogSinksFilePackageVersion>

src/Security/Authentication/test/CertificateTests.cs

@@ -189,7 +189,8 @@ public async Task VerifyExpiredSelfSignedPassesIfDateRangeValidationIsDisabled()
             Assert.Equal(HttpStatusCode.OK, response.StatusCode);
         }
 
-        [Fact]
+        [ConditionalFact]
+        [SkipOnHelix("https://github.com/dotnet/aspnetcore/issues/32813")]
         public async Task VerifyNotYetValidSelfSignedFails()
         {
             using var host = await CreateHost(

src/Security/Authentication/test/TestCertificates/selfSignedNoEkuCertificateExpired.cer

@@ -1,7 +1,7 @@
 {
   "drivers": {
     "chrome": {
-      "version" : "89.0.4389.23"
+      "version" : "91.0.4472.19"
     }
   },
   "ignoreExtraDrivers": true