Mark ShiftLeft Scan as deprecated (rebranded to Qwiet AI, acquired by Harness)

ShiftLeft rebranded to Qwiet AI in February 2023. Qwiet AI was
subsequently acquired by Harness in September 2025 and integrated
into Harness STO. The open-source sast-scan project is no longer
actively maintained.

Added deprecated flag and explanatory note.

Author: Suphikoira

data/tools/shiftleft-scan.yml

@@ -22,6 +22,7 @@ tags:
   - vbasic
   - yaml
 license: Other
+deprecated: true
 types:
   - cli
   - service
@@ -31,3 +32,5 @@ description: >-
   Scan is a free open-source DevSecOps platform for detecting security issues in
   source code and dependencies. It supports a broad range of languages and CI/CD
   pipelines.
+  Note: ShiftLeft rebranded to Qwiet AI in 2023, which was subsequently acquired
+  by Harness in September 2025. This open-source project is no longer maintained.