fix conda install

Author: zm711

.github/workflows/io-test.yml

@@ -13,7 +13,7 @@ concurrency:  # Cancel previous workflows on the same pull request
 
 jobs:
   build-and-test:
-    name: Test on (${{ inputs.os }}) (${{ matrix.python-version}})
+    name: Test on (${{ inputs.os }}) (${{ matrix.python-version}}) (${{ matrix.numpy-version }})
     runs-on: ${{ inputs.os }}
     strategy:
       fail-fast: true
@@ -76,7 +76,7 @@ jobs:
         # restore-key hits should result in `cache-hit` == 'false'
         #if: steps.cache-conda-env.outputs.cache-hit != 'true'
         run: |
-          conda install datalad pip ${{ matrix.numpy-version }}
+          conda install datalad pip numpy=${{ matrix.numpy-version }} -c conda-forge
         # this command is for updating cache. We are resting removal.
         # conda env update --name neo-test-env-${{ matrix.python-version }} --file environment_testing.yml --prune