SECURITY: Update security team members names/fingerprints

Daniel has stepped down [1] whereas Marta and Leo are joining the security team.

[1] https://lists.gnu.org/archive/html/grub-devel/2026-02/msg00021.html

Signed-off-by: Leo Sandoval <lsandova@redhat.com>
Signed-off-by: Marta Lewandowska <mlewando@redhat.com>
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Andrew Hamilton <adhamilt@gmail.com>

MAINTAINERS

@@ -2,7 +2,8 @@ List of current GRUB maintainers and some basic information about the project
 =============================================================================
 
 Here is the list of current GRUB maintainers:
-  - Daniel Kiper <daniel.kiper@oracle.com> and <dkiper@net-space.pl>,
+  - Leo Sandoval <lsandova@redhat.com>,
+  - Marta Lewandowska <mlewando@redhat.com>,
   - Alex Burmashev <alexander.burmashev@oracle.com>,
   - Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>.
 
@@ -13,10 +14,9 @@ file to get more information how to properly report this kind of bugs to
 the maintainers.
 
 The GRUB development happens on the grub-devel mailing list [1]. The latest
-GRUB source code is available at Savannah git repository [2].
+GRUB source code is available at freedesktop git repository [2].
-
-Users can ask for help on the help-grub mailing list [3].
 
+Users can also ask for help on the same grub-devel mailing list [1].
 
 List of past GRUB maintainers and people who strongly contributed to the project
 ================================================================================
@@ -25,11 +25,11 @@ Here is the list, sorted alphabetically, of past GRUB maintainers and people who
 strongly contributed to the project:
   - Andrei Borzenkov,
   - Bryan Ford,
+  - Daniel Kiper,
   - Erich Stefan Boleyn,
   - Gordon Matzigkeit,
   - Yoshinori K. Okuji.
 
 
-[1] https://lists.gnu.org/mailman/listinfo/grub-devel
+[1] https://lists.freedesktop.org/postorius/lists/grub-devel.lists.freedesktop.org/
-[2] https://git.savannah.gnu.org/gitweb/?p=grub.git&view=view+git+repository
+[2] https://gitlab.freedesktop.org/gnu-grub/grub/
-[3] https://lists.gnu.org/mailman/listinfo/help-grub

SECURITY

@@ -49,9 +49,11 @@ on each step of the process.
 
 While there's currently no bug bounty program we appreciate every report.
 
-* Contact: Daniel Kiper <daniel.kiper@oracle.com> and
+* Contact: Marta Lewandowska <mlewando@redhat.com>
-           Daniel Kiper <dkiper@net-space.pl>
+* PGP Key Fingerprint: 5B21 5739 7348 6620 C0FF  7073 DDF0 92F7 4C8F 619B
-* PGP Key Fingerprint: BE5C 2320 9ACD DACE B20D  B0A2 8C81 89F1 988C 2166
+
+* Contact: Leonardo Sandoval Gonzalez <lsandova@redhat.com>
+* PGP Key Fingerprint: DFB6 2CC1 A987 E6C7 6EBF  8143 916E C070 8CDF DDFD
 
 * Contact: Alex Burmashev <alexander.burmashev@oracle.com>
 * PGP Key Fingerprint: 50A4 EC06 EF7E B84D 67E0  3BB6 2AE2 C87E 28EF 2E6E