Add pipelines 1.12, remove EOL versions

Author: aThorp96

sync/config/pipelines.yaml

@@ -6,36 +6,37 @@
 component: Pipelines
 repository: https://github.com/tektoncd/pipeline
 archive: https://github.com/tektoncd/pipeline/tags
+# See support versions in pipelines releases.md: https://github.com/tektoncd/pipeline/blob/main/releases.md
 tags:
-- name: release-v1.9.x
-  displayName: v1.9.x-LTS
+- name: release-v1.12.x
+  displayName: v1.12.x-LTS
   folders:
     docs:
       index: README.md
       include: ['*.md']
       exclude:
         - api-spec.md
         - tutorial.md
-- name: release-v1.6.x
-  displayName: v1.6.x-LTS
+- name: release-v1.9.x
+  displayName: v1.9.x-LTS
   folders:
     docs:
       index: README.md
       include: ['*.md']
       exclude:
         - api-spec.md
         - tutorial.md
-- name: release-v1.3.x
-  displayName: v1.3.x-LTS
+- name: release-v1.6.x
+  displayName: v1.6.x-LTS
   folders:
     docs:
       index: README.md
       include: ['*.md']
       exclude:
         - api-spec.md
         - tutorial.md
-- name: release-v1.0.x
-  displayName: v1.0.x-LTS
+- name: release-v1.3.x
+  displayName: v1.3.x-LTS
   folders:
     docs:
       index: README.md