Do not fail on pip check (#523)

## Overview

Changes:

* Makes it so that `pip check` failures do not fail CI builds.

.github/workflows/main.yml

@@ -18,7 +18,7 @@ permissions:
     contents: read
 
 jobs:
-  black:
+  lint:
     name: Code linting
     runs-on: ubuntu-latest
     steps:
@@ -41,7 +41,7 @@ jobs:
 
   conda:
     name: Conda (Python${{ matrix.python-version }}; ${{ matrix.os }})
-    needs: black
+    needs: lint
     runs-on: ${{ matrix.os }}
     defaults:
       run:
@@ -84,17 +84,13 @@ jobs:
           environment-file: environment.yml
           create-args: >-
             python=${{ matrix.python-version }}
-      - name: Conda and Mamba versions
-        run: |
-          conda --version
-          echo "micromamba: $(micromamba --version)"
       - name: Install RavenWPS
         run: |
           python -m pip install --no-user --editable ".[dev]"
       - name: Check versions
         run: |
-          conda list
-          python -m pip check
+          micromamba list
+          python -m pip check || true
       - name: Test RavenWPS
         run: |
           python -m pytest -m "not very_slow" tests