rockspec: use git+https:// for git repository URL

Totktonada · Totktonada · commit 794dc180c8dc · 2021-11-09T11:08:38.000+03:00
GitHub is going to disable unencrypted Git protocol, so `git://` URLs will stop working soon (see [1]). [1]: https://github.blog/2021-09-01-improving-git-protocol-security-github/ Part of tarantool/tarantool#6587
diff --git a/mqtt-scm-1.rockspec b/mqtt-scm-1.rockspec
@@ -1,7 +1,7 @@
 package = "mqtt"
 version = "scm-1"
 source = {
-    url = "git://github.com/tarantool/mqtt.git",
+    url = "git+https://github.com/tarantool/mqtt.git",
     tag = "master"
 }
 description = {

Original file line number	Diff line number	Diff line change
`@@ -1,7 +1,7 @@`
`1`	`1`	`package = "mqtt"`
`2`	`2`	`version = "scm-1"`
`3`	`3`	`source = {`
`4`		`- url = "git://github.com/tarantool/mqtt.git",`
	`4`	`+ url = "git+https://github.com/tarantool/mqtt.git",`
`5`	`5`	`tag = "master"`
`6`	`6`	`}`
`7`	`7`	`description = {`