main/curl: appease the configure script

main/curl/APKBUILD

@@ -124,6 +124,7 @@ build() {
 		--with-nghttp2 \
 		--disable-ldap \
 		--with-pic \
+		--with-ssl=openssl \
 		--without-libssh2 # https://bugs.alpinelinux.org/issues/10222
 	make
 }