roachprod: azure default location

roachtest: apt update before go install

Update default location to `eastus`, since there
is more quota there right now.

Also, `apt-get update` before installing go (cdc)

Epic: CC-25185
Release note: none

pkg/roachprod/install/install.go

@@ -102,7 +102,9 @@ sudo apt-get update;
 sudo apt-get install -y gcc;
 `,
 
-	"go": `sudo apt --yes install golang-go;`,
+	"go": `
+sudo apt-get update;
+sudo apt-get install -y golang-go;`,
 
 	"haproxy": `
 sudo apt-get update;

pkg/roachprod/roachprod.go

@@ -1379,7 +1379,7 @@ func Create(
 			if err := cleanupFailedCreate(l, clusterName); err != nil {
 				l.Errorf("Error while cleaning up partially-created cluster: %s\n", err)
 			} else {
-				l.Errorf("Cleaning up OK\n")
+				l.Printf("Cleaning up OK\n")
 			}
 		}()
 	} else {

pkg/roachprod/vm/azure/flags.go

@@ -32,7 +32,7 @@ type ProviderOpts struct {
 }
 
 var defaultLocations = []string{
-	"eastus2",
+	"eastus",
 	"westus",
 	"westeurope",
 }