remove concurrency (#23)

Author: bjlittle

.github/workflows/ci-manifest.yml

@@ -7,10 +7,6 @@ name: ci-manifest
 on:
   workflow_call:
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
 jobs:
   manifest:
     name: "check-manifest"

.github/workflows/refresh-lockfiles.yml

@@ -13,13 +13,8 @@ name: Refresh Lockfiles
 
 
 on:
-  workflow_dispatch:
   workflow_call:
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
 jobs:
   get_python_matrix:
     # Determines which Python versions should be included in the matrix used in