Move link check to release tests

The link check often fails because of timeouts on the ensembl website,
so we only run the link check when we are releasing a new version.

.github/workflows/release.yml

@@ -6,29 +6,41 @@ on:
       - 'v[0-9]+.[0-9]+.[0-9]+'
 
 jobs:
-  check_version:
+  release_checks:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
         with:
           submodules: recursive
 
+      - name: Setup Miniforge
+        uses: conda-incubator/setup-miniconda@v3
+        with:
+          miniforge-version: latest
+          activate-environment: HAMLET
+          use-mamba: true
+
       - name: Get shortened version of release tag
         run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
 
       - name: Check release version is set correctly in every file
         run: python3 utilities/check-version.py ${{ env.RELEASE_VERSION }}
 
+      - name: Run release tests in conda environment
+        run: >-
+          pytest --keep-workflow-wd-on-fail
+          --tag release
+
   run_tests:
     uses: ./.github/workflows/ci.yml
     needs:
-      - check_version
+      - release_checks
 
   package:
     name: Package source files
     runs-on: ubuntu-latest
     needs:
-      - check_version
+      - release_checks
       - run_tests
 
     steps:
@@ -60,7 +72,7 @@ jobs:
   release:
       name: Create release
       needs:
-        - check_version
+        - release_checks
         - run_tests
         - package
       runs-on: ubuntu-latest

test/test_docs.yml

@@ -8,9 +8,3 @@
     - path: docs/build/html/genindex.html
       contains:
         - "expression"
-
-- name: test-docs-links
-  tags:
-    - hamlet
-    - docs
-  command: make -C docs/ linkcheck

test/test_release.yml

@@ -0,0 +1,4 @@
+- name: test-docs-links
+  tags:
+    - release
+  command: make -C docs/ linkcheck