Use a resolver to remove dependency on installed catalog tasks.

.lighthouse/pipeline-rust-test.yaml

@@ -21,7 +21,14 @@ spec:
     tasks:
       - name: report-pending
         taskRef:
-          name: gitea-set-status
+          resolver: git
+          params:
+            - name: url
+              value: https://github.com/tektoncd/catalog.git
+            - name: revision
+              value: df36b3853a5657fd883015cdbf07ad6466918acf
+            - name: pathInRepo
+              value: task/gitea-set-status/0.1/gitea-set-status.yaml
         runAfter:
           - fetch-repository
         params:
@@ -41,7 +48,14 @@ spec:
             value: "https://tekton.fizz.buzz/#/namespaces/$(context.pipelineRun.namespace)/pipelineruns/$(context.pipelineRun.name)"
       - name: fetch-repository
         taskRef:
-          name: git-clone
+          resolver: git
+          params:
+            - name: url
+              value: https://github.com/tektoncd/catalog.git
+            - name: revision
+              value: df36b3853a5657fd883015cdbf07ad6466918acf
+            - name: pathInRepo
+              value: task/git-clone/0.9/git-clone.yaml
         workspaces:
           - name: output
             workspace: git-source
@@ -54,7 +68,14 @@ spec:
             value: "true"
       - name: build-image
         taskRef:
-          name: kaniko
+          resolver: git
+          params:
+            - name: url
+              value: https://github.com/tektoncd/catalog.git
+            - name: revision
+              value: df36b3853a5657fd883015cdbf07ad6466918acf
+            - name: pathInRepo
+              value: task/kaniko/0.6//kaniko.yaml
         params:
           - name: IMAGE
             value: "$(params.image-name):$(tasks.fetch-repository.results.commit)"
@@ -129,7 +150,14 @@ spec:
             operator: in
             values: ["Succeeded", "Completed"]
         taskRef:
-          name: gitea-set-status
+          resolver: git
+          params:
+            - name: url
+              value: https://github.com/tektoncd/catalog.git
+            - name: revision
+              value: df36b3853a5657fd883015cdbf07ad6466918acf
+            - name: pathInRepo
+              value: task/gitea-set-status/0.1/gitea-set-status.yaml
         params:
           - name: CONTEXT
             value: "$(params.JOB_NAME)"
@@ -151,7 +179,14 @@ spec:
             operator: in
             values: ["Failed"]
         taskRef:
-          name: gitea-set-status
+          resolver: git
+          params:
+            - name: url
+              value: https://github.com/tektoncd/catalog.git
+            - name: revision
+              value: df36b3853a5657fd883015cdbf07ad6466918acf
+            - name: pathInRepo
+              value: task/gitea-set-status/0.1/gitea-set-status.yaml
         params:
           - name: CONTEXT
             value: "$(params.JOB_NAME)"