chore: Use git-clone artifacthub stepactions

Replaced the local HTTP-based git-clone stepaction with the official
Tekton Hub resolver across Tekton workflows. Removed the redundant
local stepaction definition file to keep configuration centralized.

Signed-off-by: Chmouel Boudjnah <chmouel@redhat.com>

Author: chmouel

.tekton/doc.yaml

@@ -36,10 +36,18 @@ spec:
           steps:
             - name: fetch-repo
               ref:
-                resolver: http
+                resolver: hub
                 params:
-                  - name: url
-                    value: https://raw.githubusercontent.com/tektoncd/pipelines-as-code/refs/heads/main/.tekton/stepactions/git-clone.yaml
+                  - name: catalog
+                    value: git-clone-stepaction
+                  - name: type
+                    value: artifact
+                  - name: kind
+                    value: stepaction
+                  - name: name
+                    value: git-clone
+                  - name: version
+                    value: "1.7.0"
               params:
                 - name: output-path
                   value: $(workspaces.source.path)

.tekton/generate-coverage-release.yaml

@@ -30,10 +30,18 @@ spec:
           steps:
             - name: fetch-repo
               ref:
-                resolver: http
+                resolver: hub
                 params:
-                  - name: url
-                    value: https://raw.githubusercontent.com/tektoncd/pipelines-as-code/refs/heads/main/.tekton/stepactions/git-clone.yaml
+                  - name: catalog
+                    value: git-clone-stepaction
+                  - name: type
+                    value: artifact
+                  - name: kind
+                    value: stepaction
+                  - name: name
+                    value: git-clone
+                  - name: version
+                    value: "1.7.0"
               params:
                 - name: output-path
                   value: $(workspaces.source.path)

.tekton/go.yaml

@@ -27,10 +27,18 @@ spec:
           steps:
             - name: fetch-repo
               ref:
-                resolver: http
+                resolver: hub
                 params:
-                  - name: url
-                    value: https://raw.githubusercontent.com/tektoncd/pipelines-as-code/refs/heads/main/.tekton/stepactions/git-clone.yaml
+                  - name: catalog
+                    value: git-clone-stepaction
+                  - name: type
+                    value: artifact
+                  - name: kind
+                    value: stepaction
+                  - name: name
+                    value: git-clone
+                  - name: version
+                    value: "1.7.0"
               params:
                 - name: output-path
                   value: $(workspaces.source.path)

.tekton/linter.yaml

@@ -26,10 +26,18 @@ spec:
           steps:
             - name: fetch-repo
               ref:
-                resolver: http
+                resolver: hub
                 params:
-                  - name: url
-                    value: https://raw.githubusercontent.com/tektoncd/pipelines-as-code/refs/heads/main/.tekton/stepactions/git-clone.yaml
+                  - name: catalog
+                    value: git-clone-stepaction
+                  - name: type
+                    value: artifact
+                  - name: kind
+                    value: stepaction
+                  - name: name
+                    value: git-clone
+                  - name: version
+                    value: "1.7.0"
               params:
                 - name: output-path
                   value: $(workspaces.source.path)

.tekton/stepactions/git-clone.yaml

@@ -15,10 +15,18 @@ spec:
           steps:
             - name: fetch-repo-with-stepaction
               ref:
-                resolver: http
+                resolver: hub
                 params:
-                  - name: url
-                    value: https://raw.githubusercontent.com/tektoncd/pipelines-as-code/refs/heads/main/.tekton/stepactions/git-clone.yaml
+                  - name: catalog
+                    value: git-clone-stepaction
+                  - name: type
+                    value: artifact
+                  - name: kind
+                    value: stepaction
+                  - name: name
+                    value: git-clone
+                  - name: version
+                    value: "1.7.0"
               params:
                 - name: output-path
                   value: "/tmp/output"