roachtest: add restore/tpcc-5k/azure/nodes=4/cpus=8 test

Fixes #91310

Release note: none

Author: msbutler

pkg/cmd/roachtest/tests/restore.go

@@ -309,6 +309,12 @@ func registerRestore(r registry.Registry) {
 			timeout:  2 * time.Hour,
 			suites:   registry.Suites(registry.Nightly),
 		},
+		{
+			hardware: makeHardwareSpecs(hardwareSpecs{}),
+			backup:   backupSpecs{cloud: spec.Azure, fixture: SmallFixture},
+			timeout:  2 * time.Hour,
+			suites:   registry.Suites(registry.Nightly),
+		},
 		{
 			// Benchmarks using a low memory per core ratio - we don't expect ideal
 			// performance but nodes should not OOM.