patch 9.0.1071: Codecov action version is too specific

Problem:    Codecov action version is too specific.
Solution:   Only use "v3" to automatically use the latest stable version.
            (closes #11720)
diff --git a/src/version.c b/src/version.c
index cd52fed..f80aeca 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1071,
+/**/
     1070,
 /**/
     1069,