[pygobject] ci: move some jobs to manual

[Christoph Reiter <creiter src gnome org>]

commit 1e4b9859e7a511bd0fd41194ce65a07fd3c0a5fd
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Mon Apr 30 10:52:45 2018 +0200

    ci: move some jobs to manual
    
    gitlab likes to ban users who trigger too many jobs, so let's
    reduce the default amount a bit.

 .gitlab-ci.yml | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f7e27de1..d0bf6814 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -59,6 +59,7 @@ python2-mingw32:
   <<: *mingw-defaults
 
 python2-mingw64:
+  when: manual
   variables:
     PYTHON: "python2"
     MSYSTEM: "MINGW64"
@@ -66,6 +67,7 @@ python2-mingw64:
   <<: *mingw-defaults
 
 python3-mingw32:
+  when: manual
   variables:
     PYTHON: "python3"
     MSYSTEM: "MINGW32"
@@ -85,6 +87,7 @@ python2.7:
   <<: *defaults
 
 python3.5:
+  when: manual
   variables:
     PYENV_VERSION: "3.5.5"
   <<: *defaults
@@ -106,6 +109,7 @@ pypy2:
   <<: *defaults
 
 pypy3:
+  when: manual
   allow_failure: true
   variables:
     PYENV_VERSION: "pypy3.5-5.10.1"