Add a workflow step to automate uploading to testpypi

Signed-off-by: Nathan Goldbaum <[email protected]>

.github/workflows/build.yml

@@ -616,3 +616,33 @@ jobs:
         - name: Python Test Steps
           run: make test TEST_ARGS="-k TestDBReader"
           if: ${{ contains( 'sqlalchemy', matrix.package )}}
+
+                  #7#
+    #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
+    #~~~~~~Upload to testpypi~~~~~~~#
+    #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~#
+    testpypi_publish:
+      needs:
+        - build_sdist
+        - build
+
+      runs-on: ubuntu-22.04
+      permissions:
+        id-token: write
+      steps:
+        - name: Download wheels and sdist
+          uses: actions/download-artifact@v4
+          path: ~/dist
+          with:
+            name:
+            merge-multiple: true
+
+        - name: Display structure of downloaded files
+          run: ls -R dist
+
+        - name: Publish version to testpypi
+          # only actually upload to testpypi on pushes to main
+          if: github.reg == 'regs/heads/main' && github.event_name != 'pull_request'
+          uses: pypa/gh-action-pypi-publish@release/v1
+          with:
+            repository-url: https://test.pypi.org/legacy