Switch to using the commit hash from the fetch-repository step for gitea status.

The PULL_BASE_SHA was sometimes being set as master which meant that if multiple commits came in, they'd all write their statuses to the newest one.

.lighthouse/pipeline-rust-test.yaml

@@ -43,6 +43,8 @@ spec:
       - name: report-pending
         taskRef:
           name: gitea-set-status
+        runAfter:
+          - fetch-repository
         params:
           - name: CONTEXT
             value: "$(params.JOB_NAME)"
@@ -51,7 +53,7 @@ spec:
           - name: GITEA_HOST_URL
             value: code.fizz.buzz
           - name: SHA
-            value: "$(params.PULL_BASE_SHA)"
+            value: "$(tasks.fetch-repository.results.commit)"
           - name: DESCRIPTION
             value: "Build $(params.JOB_NAME) has started"
           - name: STATE
@@ -76,7 +78,7 @@ spec:
           name: kaniko
         params:
           - name: IMAGE
-            value: "$(params.image-name):$(params.PULL_BASE_SHA)"
+            value: "$(params.image-name):$(tasks.fetch-repository.results.commit)"
           - name: CONTEXT
             value: $(params.path-to-image-context)
           - name: DOCKERFILE
@@ -116,7 +118,7 @@ spec:
           - name: args
             value: ["$(params.args[*])"]
           - name: docker-image
-            value: "$(params.image-name):$(params.PULL_BASE_SHA)"
+            value: "$(params.image-name):$(tasks.fetch-repository.results.commit)"
     finally:
       - name: report-success
         when:
@@ -133,7 +135,7 @@ spec:
           - name: GITEA_HOST_URL
             value: code.fizz.buzz
           - name: SHA
-            value: "$(params.PULL_BASE_SHA)"
+            value: "$(tasks.fetch-repository.results.commit)"
           - name: DESCRIPTION
             value: "Build $(params.JOB_NAME) has succeeded"
           - name: STATE
@@ -155,7 +157,7 @@ spec:
           - name: GITEA_HOST_URL
             value: code.fizz.buzz
           - name: SHA
-            value: "$(params.PULL_BASE_SHA)"
+            value: "$(tasks.fetch-repository.results.commit)"
           - name: DESCRIPTION
             value: "Build $(params.JOB_NAME) has failed"
           - name: STATE

.lighthouse/pipeline-rustfmt.yaml

@@ -51,6 +51,8 @@ spec:
       - name: report-pending
         taskRef:
           name: gitea-set-status
+        runAfter:
+          - fetch-repository
         params:
           - name: CONTEXT
             value: "$(params.JOB_NAME)"
@@ -59,7 +61,7 @@ spec:
           - name: GITEA_HOST_URL
             value: code.fizz.buzz
           - name: SHA
-            value: "$(params.PULL_BASE_SHA)"
+            value: "$(tasks.fetch-repository.results.commit)"
           - name: DESCRIPTION
             value: "Build $(params.JOB_NAME) has started"
           - name: STATE
@@ -92,7 +94,7 @@ spec:
           name: kaniko
         params:
           - name: IMAGE
-            value: "$(params.image-name):$(params.PULL_BASE_SHA)"
+            value: "$(params.image-name):$(tasks.fetch-repository.results.commit)"
           - name: CONTEXT
             value: $(params.path-to-image-context)
           - name: DOCKERFILE
@@ -131,7 +133,7 @@ spec:
           - name: args
             value: ["$(params.args[*])"]
           - name: docker-image
-            value: "$(params.image-name):$(params.PULL_BASE_SHA)"
+            value: "$(params.image-name):$(tasks.fetch-repository.results.commit)"
       - name: commit-changes
         taskRef:
           name: git-cli
@@ -172,7 +174,7 @@ spec:
           - name: GITEA_HOST_URL
             value: code.fizz.buzz
           - name: SHA
-            value: "$(params.PULL_BASE_SHA)"
+            value: "$(tasks.fetch-repository.results.commit)"
           - name: DESCRIPTION
             value: "Build $(params.JOB_NAME) has succeeded"
           - name: STATE
@@ -194,7 +196,7 @@ spec:
           - name: GITEA_HOST_URL
             value: code.fizz.buzz
           - name: SHA
-            value: "$(params.PULL_BASE_SHA)"
+            value: "$(tasks.fetch-repository.results.commit)"
           - name: DESCRIPTION
             value: "Build $(params.JOB_NAME) has failed"
           - name: STATE