Resolve "Fix git commit hash pattern"

Closes #129 (closed)

src/components/workflows/modals/ArbitraryWorkflowModal.vue

@@ -529,7 +529,7 @@ onMounted(() => {
               ref="workflowGitCommitHashElement"
               maxlength="40"
               minlength="40"
-              pattern="^[0-9a-f]$"
+              pattern="^[0-9a-f]+$"
               v-model="workflow.git_commit_hash"
               @change="formState.allowUpload = false"
             />