Update Stage File Proxy module from ~1.0 to ~2.0

Problem/Motivation

Stage File Proxy 2.0.2 was released on: 7 Dec 2022 by: smustgrave
https://www.drupal.org/project/stage_file_proxy/releases/2.0.2

Proposed resolution

• Change drupal/stage_file_proxy to ~2.0 in the composer.json file

Remaining tasks

• ✅ File an issue about this project
• ✅ Addition/Change/Update/Fix to this project
• ✅ Testing to ensure no regression
• ➖ Automated unit/functional testing coverage
• ➖ Developer Documentation support on feature change/addition
• ➖ User Guide Documentation support on feature change/addition
• ➖ Accessibility and Readability
• ✅ Code review from 1 Varbase core team member
• ✅ Full testing and approval
• ✅ Credit contributors
• ✅ Review with the product owner
• ✅ Update Release Notes and Update Helper on new feature change/addition
• ❌✅ Release varbase-9.0.12, varbase_core-9.0.47

Varbase update type

• ✅ No Update
• ➖ Optional Update
• ➖ Forced Update
• ➖ Forced Update if Unchanged

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3335877: Updated Stage File Proxy module from ~1.0 to ~2.0