Restore artifact-name functionality, per PR feedback [#89]

* Update `artifact-name` description in `pathogen-repo-ci.yaml` to
  make it clear build directory will be appended to provided value,
  and to update default value to make clear these are CI results
* Pass `artifact-name` down into `run-nextstrain-ci-build` steps ni
  `pathogen-repo-ci` workflow
* Add `artifact-name` input to `run-nextstrain-ci-build` action and
  use it in `upload-artifact` action step

.github/workflows/pathogen-repo-ci.yaml

@@ -74,15 +74,20 @@ on:
 
       artifact-name:
         description: >-
-          Name to use for build results artifact uploaded at the end of the
-          workflow.  This name will be suffixed with other information from the
-          workflow job matrix to distinguish each artifact in a workflow run.
+          A base name to use for the uploaded artifacts from the
+          build. This will be concatenated with the directory name
+          used to invoke the build to generate the full artifact file
+          name.
 
-          If you're invoking this workflow multiple times from the same calling
-          workflow, you should set this.  Otherwise, the default of "outputs"
-          is probably fine.
+          Defaults to `ci-outputs`.
+
+          N.b., you almost certainly don't need to change this, unless
+          you're running multiple invocations of this action in a
+          single workflow. Then you should provide unique values to
+          ensure you can access the artifacts from all the builds
+          you're doing.
         type: string
-        default: outputs
+        default: ci-outputs
         required: false
 
       continue-on-error:
@@ -244,15 +249,18 @@ jobs:
         with:
           directory: ingest
           runtime: ${{ matrix.runtime }}
+          artifact-name: ${{ inputs.artifact-name }}
 
       - name: Run phylogenetic
         uses: ./.git/nextstrain/.github/actions/run-nextstrain-ci-build
         with:
           directory: phylogenetic
           runtime: ${{ matrix.runtime }}
+          artifact-name: ${{ inputs.artifact-name }}
 
       - name: Run nextclade
         uses: ./.git/nextstrain/.github/actions/run-nextstrain-ci-build
         with:
           directory: nextclade
           runtime: ${{ matrix.runtime }}
+          artifact-name: ${{ inputs.artifact-name }}

actions/run-nextstrain-ci-build/action.yaml

@@ -11,6 +11,12 @@ description: >-
   the context of that specific workflow.
 
 inputs:
+  artifact-name:
+    description: >-
+      Name to append to the build directory to generate a
+      unique artifact name for the upload action.
+    type: string
+    required: true
   directory:
     description: The name of the sub-directory to run the build from
     type: string
@@ -42,7 +48,7 @@ runs:
       if: always()
       uses: actions/upload-artifact@v4
       with:
-        name: ci-outputs-${{ inputs.directory }}-${{ inputs.runtime }}
+        name: ${{ inputs.artifact-name }}-${{ inputs.directory }}-${{ inputs.runtime }}
         if-no-files-found: ignore
         path: |
           ${{ inputs.directory }}/.snakemake/log/