internal/rosa: key-value type

This type is used very frequently. The new type is much easier to type and can receive helper methods eventually if needed.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/curl.go

@@ -18,7 +18,7 @@ func (t Toolchain) newCurl() (pkg.Artifact, string) {
 chmod +w tests/data && rm tests/data/test459
 `,
 	}, &MakeHelper{
-		Configure: [][2]string{
+		Configure: []KV{
 			{"with-openssl"},
 			{"with-ca-bundle", "/system/etc/ssl/certs/ca-bundle.crt"},