Update SymPy Dependency + Pipeline Cleanup

This MR

• raises the upper limit for SymPy to 1.12.1
• introduces a weekly test run against the latest sympy pre-release
• cleans up the CI configuration a bit

Closes #91 (closed)

.gitlab-ci.yml

@@ -3,9 +3,10 @@ stages:
   - test
   - nightly
   - docs
+  - deploy
 
 
-# --------------------------  Template ------------------------------------------------------------------------------------
+# --------------------------  Templates ------------------------------------------------------------------------------------
 
 # Base configuration for jobs meant to run at every commit
 .every-commit:
@@ -278,6 +279,9 @@ pycodegen-integration:
       junit: pycodegen/*/report.xml
 
 
+# -------------------- Scheduled Tasks --------------------------------------------------------------------------
+
+
 # Nightly test against the latest (pre-release) version of SymPy published on PyPI
 nightly-sympy:
   stage: nightly
@@ -338,7 +342,7 @@ build-documentation:
 pages:
   image: i10git.cs.fau.de:5005/pycodegen/pycodegen/full
   # extends: .every-commit
-  stage: docs
+  stage: deploy
   needs: ["build-documentation"]
   script:
     - ls -l