[6.16.z] Update RHEL9 & RHEL10 version in constants (#22298)

Cherry-pick of #21635. Adapted for 6.16.z: rhel10 kickstart entries
skipped as they don't exist on this branch.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Gauravtalreja1

robottelo/constants/__init__.py

@@ -598,16 +598,16 @@
         },
         'rhel9_bos': {
             'id': 'rhel-9-for-x86_64-baseos-kickstart',
-            'name': 'Red Hat Enterprise Linux 9 for x86_64 - BaseOS Kickstart 9.7',
-            'version': '9.7',
+            'name': 'Red Hat Enterprise Linux 9 for x86_64 - BaseOS Kickstart 9.8',
+            'version': '9.8',
             'reposet': REPOSET['kickstart']['rhel9_bos'],
             'product': PRDS['rhel9'],
             'distro': 'rhel9',
         },
         'rhel9_aps': {
             'id': 'rhel-9-for-x86_64-appstream-kickstart',
-            'name': 'Red Hat Enterprise Linux 9 for x86_64 - AppStream Kickstart 9.7',
-            'version': '9.7',
+            'name': 'Red Hat Enterprise Linux 9 for x86_64 - AppStream Kickstart 9.8',
+            'version': '9.8',
             'reposet': REPOSET['kickstart']['rhel9_aps'],
             'product': PRDS['rhel9'],
             'distro': 'rhel9',
@@ -704,8 +704,8 @@
 # RHEL versions for LEAPP testing
 RHEL7_VER = '7.9'
 RHEL8_VER = '8.10'
-RHEL9_VER = '9.7'
-RHEL10_VER = '10.1'
+RHEL9_VER = '9.8'
+RHEL10_VER = '10.2'
 
 BULK_REPO_LIST = [
     REPOS['rhel7_optional'],