certs: import 2023 Microsoft keys

Sourced from https://github.com/microsoft/secureboot_objects, old keys renamed
to match the layout of that repo.

b3sums:

```
e7d0ef4f29f8e4eddfa88c3988eea100c13a506ad0086232b58203d54187ea27  certs/microsoft/KEK/MicCorKEKCA2011_2011-06-24.der
27e3df2b0b14b19f42086ff45302f0a8ed97d9d175f7da25c4dafb777109e8b5  certs/microsoft/KEK/microsoft corporation kek 2k ca 2023.der
8f095006cf96ca49abd1749712babcc5dee6c7684f79d158c112bb241887e1d3  certs/microsoft/db/MicCorUEFCA2011_2011-06-27.der
c7ddcf7022b01b24cd9526df5e62e7104b4068614d6f017f9ac0a300818e5e93  certs/microsoft/db/MicWinProPCA2011_2011-10-19.der
52d203d31a5567c4d95ea21ca5985b77b466f6db8ce6a66ce4d4e519438b2ea5  certs/microsoft/db/microsoft option rom uefi ca 2023.der
f082ff05036381a79a36f4843940a79b9881dbc2e1d51daf53aadbb63208dbc2  certs/microsoft/db/microsoft uefi ca 2023.der
b3dc2cdab61421d267ae02b0e86a8d4eabb4e5d826dc62e743e7749bd10a656f  certs/microsoft/db/windows uefi ca 2023.der
```

Please confirm manually against the Microsoft repo before merging.

Author: K900

certs/certs_test.go

@@ -14,28 +14,28 @@ func TestGetVendors(t *testing.T) {
 
 func TestGetOEMCertsDb(t *testing.T) {
 	db, _ := GetOEMCerts("microsoft", "db")
-	if len(*db) != 2 {
-		t.Fatalf("GetOEMCerts: not correct size, got %d, expected %d", len(*db), 2)
+	if len(*db) != 5 {
+		t.Fatalf("GetOEMCerts: not correct size, got %d, expected %d", len(*db), 5)
 	}
 }
 
 func TestGetOEMCertsKek(t *testing.T) {
 	kek, _ := GetOEMCerts("microsoft", "KEK")
-	if len(*kek) != 1 {
-		t.Fatalf("GetOEMCerts: not correct size, got %d, expected %d", len(*kek), 1)
+	if len(*kek) != 2 {
+		t.Fatalf("GetOEMCerts: not correct size, got %d, expected %d", len(*kek), 2)
 	}
 }
 
 func TestDefaultCertsDb(t *testing.T) {
 	db, _ := GetDefaultCerts("db")
-	if len(*db) != 2 {
-		t.Fatalf("GetDefaultCerts: not correct size, got %d, expected %d", len(*db), 2)
+	if len(*db) != 5 {
+		t.Fatalf("GetDefaultCerts: not correct size, got %d, expected %d", len(*db), 5)
 	}
 }
 
 func TestDefaultCertsKek(t *testing.T) {
 	kek, _ := GetDefaultCerts("KEK")
-	if len(*kek) != 1 {
-		t.Fatalf("GetDefaultCerts: not correct size, got %d, expected %d", len(*kek), 1)
+	if len(*kek) != 2 {
+		t.Fatalf("GetDefaultCerts: not correct size, got %d, expected %d", len(*kek), 2)
 	}
 }