WIP FIX: Fix pipeline: Upgrade conan to 1.48.

Summary

Old version was missing is_msvc module.

Focus

Are the versions OK?

Test Environment

Look at the pipelines

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related issues #41 (closed)
• Up-to-date CHANGELOG.md (or not necessary)
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md (or not necessary)
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there specifications? Are they satisfied?

For further good practices have a look at our review guidelines.

RELEASE_GUIDELINES.md

@@ -20,8 +20,9 @@ guidelines of the CaosDB Project
 
 3. Check all general prerequisites.
 
-4. Prepare [CMakeLists.txt](./CMakeLists.txt): Check the `MAJOR`, `MINOR`, `PATCH`
-   version variables.
+4. Update version numbers:
+   1. In [CMakeLists.txt](./CMakeLists.txt): Check the `MAJOR`, `MINOR`, `PATCH` version variables.
+   2. In `conanfile.py`: Update the `version` variable.
 
 5. Merge the release branch into the main branch.