[gcc r17-3178] MAINTAINERS.yml: Add my private email as additional email

https://gcc.gnu.org/g:fd6fed6b6cd9ab390c5fdc157fa1c87280d73e95

commit r17-3178-gfd6fed6b6cd9ab390c5fdc157fa1c87280d73e95
Author: Tobias Burnus <[email protected]>
Date:   Mon Aug 10 10:50:46 2026 +0200

    MAINTAINERS.yml: Add my private email as additional email
    
    For completeness; it is still valid and actively used (albeit not for GCC
    patch submissions), has the FSF copyright assignment, and plenty older
    commits where done with that email address.
    
    ChangeLog:
    
            * MAINTAINERS.yml (Burnus): Add private email as
            additional active email.

Diff:
---
 MAINTAINERS.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS.yml b/MAINTAINERS.yml
index d1695fb5de93..8b5b02290526 100644
--- a/MAINTAINERS.yml
+++ b/MAINTAINERS.yml
@@ -612,6 +612,7 @@ users:
   cn: Tobias Burnus
   email:
   - [email protected]
+  - [email protected]
   - [email protected]
   roles:
   - Maintainer: libgomp