Add TailcallStress + GCStress testing to gcstress-extra pipeline (#41827)

Fixes #41825

Author: BruceForstall

eng/pipelines/common/templates/runtimes/run-test-job.yml

@@ -410,6 +410,7 @@ jobs:
           - gcstress0xc_zapdisable_heapverify1
           - gcstress0xc_jitstress1
           - gcstress0xc_jitstress2
+          - gcstress0xc_tailcallstress
           - gcstress0xc_jitminopts_heapverify1
         ${{ if in(parameters.testGroup, 'r2r-extra') }}:
           scenarios:

src/coreclr/tests/testenvironment.proj

@@ -140,6 +140,7 @@
     <TestEnvironment Include="gcstress0xc_zapdisable_heapverify1" GCStress="0xC" ZapDisable="1" ReadyToRun="0" HeapVerify="1" />
     <TestEnvironment Include="gcstress0xc_jitstress1" GCStress="0xC" JitStress="1" />
     <TestEnvironment Include="gcstress0xc_jitstress2" GCStress="0xC" JitStress="2" />
+    <TestEnvironment Include="gcstress0xc_tailcallstress" GCStress="0xC" TailcallStress="1" />
     <TestEnvironment Include="gcstress0xc_jitminopts_heapverify1" GCStress="0xC" JITMinOpts="1" HeapVerify="1" />
     <TestEnvironment Include="jitosr" TC_OnStackReplacement="1" TC_QuickJitForLoops="1" TieredCompilation="1" />
     <TestEnvironment Include="jitosr_stress" TC_OnStackReplacement="1" TC_QuickJitForLoops="1" TC_OnStackReplacement_InitialCounter="1" OSR_HitLimit="1" TieredCompilation="1" />