Remove build and tests for Debian Buster

This MR closes Drop support for Debian Buster (#28 - closed) by removing all Buster build and tests jobs from the CI pipeline.

.gitlab/ci/debian.yml

@@ -12,9 +12,6 @@ include:
 
 # -- macros
 
-.buster:
-  image: igwn/builder:buster
-
 .bullseye:
   image: igwn/builder:bullseye
 
@@ -42,11 +39,6 @@ include:
     - (cd gwdatafind-server-*/ && dch --rebuild 'ci')
     - tar -zcf ${TARBALL} gwdatafind-server-*/
 
-dsc:buster:
-  extends:
-    - .dsc
-    - .buster
-
 dsc:bullseye:
   extends:
     - .dsc
@@ -67,13 +59,6 @@ dsc:bullseye:
   variables:
     DSC: "gwdatafind-server_*.dsc"
 
-deb:buster:
-  extends:
-    - .deb
-    - .buster
-  needs:
-    - dsc:buster
-
 deb:bullseye:
   extends:
     - .deb
@@ -109,15 +94,6 @@ deb:bullseye:
           python3-pytest
           python3-pytest-cov
 
-test:buster:
-  extends:
-    - .test:debian
-    - .buster
-  needs:
-    - tarball
-    - deb:buster
-  image: igwn/base:buster
-
 test:bullseye:
   extends:
     - .test:debian
@@ -141,15 +117,6 @@ test:bullseye:
   variables:
     LINTIAN_OPTIONS: "--color always --suppress-tags new-package-should-close-itp-bug --fail-on warning --allow-root --pedantic"
 
-lintian:buster:
-  extends:
-    - .lintian
-    - .buster
-  needs:
-    - deb:buster
-  variables:
-    LINTIAN_OPTIONS: "--color always --suppress-tags new-package-should-close-itp-bug --fail-on-warnings --allow-root --pedantic"
-
 lintian:bullseye:
   extends:
     - .lintian