Fix typo shedules -> schedules, CI should work again

.gitlab-ci.yml

@@ -195,7 +195,7 @@ test:windows_nightly:msvc++14.1:
 conan:linux:clang:
   stage: conan
   except:
-    - shedules
+    - schedules
   tags:
     - CentOS
     - opengl
@@ -214,7 +214,7 @@ conan:linux:clang:
 cmake:linux:clang:
   stage: cmake
   except:
-    - shedules
+    - schedules
   tags:
     - CentOS
     - opengl
@@ -289,7 +289,7 @@ clear:linux_nightly:clang:
 conan:linux_nightly:clang:
   stage: conan
   only:
-    - shedules
+    - schedules
   tags:
     - nightly
     - clang
@@ -309,7 +309,7 @@ conan:linux_nightly:clang:
 cmake:linux_nightly:clang:
   stage: cmake
   only:
-    - shedules
+    - schedules
   tags:
     - nightly
     - clang