Update CVE-2026-67991.yml with version changes

Author: jasnow

gems/ruby_llm/CVE-2026-67991.yml

@@ -18,9 +18,9 @@ description: |
   the affected operation."
 cvss_v3: 7.5
 unaffected_versions:
-  - "< 0.0.pre42"
+  - "< 0.1.0.pre42"
 patched_versions:
-  - ">= 2.0.0.r1"
+  - ">= 2.0.0.rc1"
 related:
   url:
     - https://nvd.nist.gov/vuln/detail/CVE-2026-67991