ci: specify containter dependencies for all the jobs

Write down the container job needed for each build job in the
'needs' keyword to allow greater parallelism.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>

.gitlab-ci.yml

@@ -284,74 +284,102 @@ mingw64-fedora-rawhide-container:
 
 x64-debian-10:
   <<: *native_build_job_definition
+  needs:
+    - x64-debian-10-container
   variables:
     NAME: debian-10
 
 x64-debian-10-clang:
   <<: *native_build_job_definition
+  needs:
+    - x64-debian-10-container
   variables:
     NAME: debian-10
     CC: clang
 
 x64-debian-sid:
   <<: *native_build_job_definition
+  needs:
+    - x64-debian-sid-container
   variables:
     NAME: debian-sid
 
 x64-centos-7:
   <<: *native_build_centos_7_job_definition
+  needs:
+    - x64-centos-7-container
   variables:
     NAME: centos-7
 
 x64-centos-8:
   <<: *native_build_job_definition
+  needs:
+    - x64-centos-8-container
   variables:
     NAME: centos-8
 
 x64-centos-8-clang:
   <<: *native_build_job_definition
+  needs:
+    - x64-centos-8-container
   variables:
     NAME: centos-8
     CC: clang
 
 x64-centos-stream:
   <<: *native_build_job_definition
+  needs:
+    - x64-centos-stream-container
   variables:
     NAME: centos-stream
 
 x64-fedora-31:
   <<: *native_build_job_definition
+  needs:
+    - x64-fedora-31-container
   variables:
     NAME: fedora-31
 
 x64-fedora-32:
   <<: *native_build_job_definition
+  needs:
+    - x64-fedora-32-container
   variables:
     NAME: fedora-32
 
 x64-fedora-rawhide:
   <<: *native_build_job_definition
+  needs:
+    - x64-fedora-rawhide-container
   variables:
     NAME: fedora-rawhide
 
 x64-fedora-rawhide-clang:
   <<: *native_build_job_definition
+  needs:
+    - x64-fedora-rawhide-container
   variables:
     NAME: fedora-rawhide
     CC: clang
 
 x64-opensuse-151:
   <<: *native_build_job_definition
+  needs:
+    - x64-opensuse-151-container
   variables:
     NAME: opensuse-151
 
 x64-ubuntu-1804:
   <<: *native_build_job_definition
+  needs:
+    - x64-ubuntu-1804-container
   variables:
     NAME: ubuntu-1804
 
 x64-ubuntu-2004:
   <<: *native_build_job_definition
+  needs:
+    - x64-ubuntu-2004-container
   variables:
     NAME: ubuntu-2004
 
@@ -380,66 +408,88 @@ x64-macos-1015-build:
 
 armv6l-debian-10:
   <<: *cross_build_job_definition
+  needs:
+    - armv6l-debian-10-container
   variables:
     NAME: debian-10
     CROSS: armv6l
 
 armv7l-debian-10:
   <<: *cross_build_job_definition
+  needs:
+    - armv7l-debian-10-container
   variables:
     NAME: debian-10
     CROSS: armv7l
 
 mips64el-debian-10:
   <<: *cross_build_job_definition
+  needs:
+    - mips64el-debian-10-container
   variables:
     NAME: debian-10
     CROSS: mips64el
 
 mips-debian-10:
   <<: *cross_build_job_definition
+  needs:
+    - mips-debian-10-container
   variables:
     NAME: debian-10
     CROSS: mips
 
 aarch64-debian-10:
   <<: *cross_build_job_definition
+  needs:
+    - aarch64-debian-10-container
   variables:
     NAME: debian-10
     CROSS: aarch64
 
 mipsel-debian-10:
   <<: *cross_build_job_definition
+  needs:
+    - mipsel-debian-10-container
   variables:
     NAME: debian-10
     CROSS: mipsel
 
 s390x-debian-sid:
   <<: *cross_build_job_definition
+  needs:
+    - s390x-debian-10-container
   variables:
     NAME: debian-sid
     CROSS: s390x
 
 i686-debian-sid:
   <<: *cross_build_job_definition
+  needs:
+    - i686-debian-sid-container
   variables:
     NAME: debian-sid
     CROSS: i686
 
 ppc64le-debian-sid:
   <<: *cross_build_job_definition
+  needs:
+    - ppc64le-debian-10-container
   variables:
     NAME: debian-sid
     CROSS: ppc64le
 
 mingw32-fedora-rawhide:
   <<: *cross_build_job_definition
+  needs:
+    - mingw32-fedora-rawhide-container
   variables:
     NAME: fedora-rawhide
     CROSS: mingw32
 
 mingw64-fedora-rawhide:
   <<: *cross_build_job_definition
+  needs:
+    - mingw64-fedora-rawhide-container
   variables:
     NAME: fedora-rawhide
     CROSS: mingw64
@@ -451,6 +501,8 @@ mingw64-fedora-rawhide:
 website:
   stage: builds
   image: $CI_REGISTRY_IMAGE/ci-centos-8:latest
+  needs:
+    - x64-centos-8-container
   before_script:
     - *script_variables
   script:
@@ -469,6 +521,8 @@ website:
 codestyle:
   stage: builds
   image: $CI_REGISTRY_IMAGE/ci-opensuse-151:latest
+  needs:
+    - x64-opensuse-151-container
   before_script:
     - *script_variables
   script:
@@ -483,6 +537,8 @@ codestyle:
 potfile:
   stage: builds
   image: $CI_REGISTRY_IMAGE/ci-centos-8:latest
+  needs:
+    - x64-centos-8-container
   only:
     - master
   before_script: