Fix: update EVI regex and test output in show_l2vpn_bridge_domain_detail parser

- Modified `p63` regex in `show_l2vpn.py` to support optional suffix (e.g., "(SRv6)") for EVI values
- Updated `golden9_expected.py` to reflect new test output for EVI field
- Adjusted URL in `github_parser.json` for the updated line reference

These changes enhance the parser's compatibility with new formats in `ShowL2vpnBridgeDomainDetail`.

Author: Kani999

Diff for: changelog/undistributed/changelog_show_l2vpn_bridge_domain_detail_iosxr_20241029105539.rst

@@ -0,0 +1,6 @@
+--------------------------------------------------------------------------------
+                            Fix
+--------------------------------------------------------------------------------
+* IOSXR
+    * Modified ShowL2vpnBridgeDomainDetail:
+        * Modified regex <p63> in to support optional suffix (e.g., "(SRv6)") for EVI values

Diff for: sdk_generator/outputs/github_parser.json

@@ -52176,7 +52176,7 @@
           "os": "iosxr"
         },
         "uid": "show_l2vpn_forwarding_xconnect_xconnect_name_detail_location_location_name",
-        "url": "https://github.com/CiscoTestAutomation/genieparser/tree/master/src/genie/libs/parser/iosxr/show_l2vpn.py#L2754"
+        "url": "https://github.com/CiscoTestAutomation/genieparser/tree/master/src/genie/libs/parser/iosxr/show_l2vpn.py#L2755"
       }
     }
   },

Diff for: src/genie/libs/parser/iosxr/show_l2vpn.py

@@ -1585,7 +1585,8 @@ def cli(self, output=None):
         p62 = re.compile(r'^(?P<evpn>\S+), +state: +(?P<state>\S+)$')
 
         # evi: 1000
-        p63 = re.compile(r'^evi: +(?P<evi>\d+)$')
+        # evi: 1000 (SRv6)
+        p63 = re.compile(r'^evi: +(?P<evi>\d+)(?:\s*\(.*\))?$')
 
         # XC ID 0x80000009
         p64 = re.compile(r'^XC +ID (?P<xc_id>\S+)$')

Diff for: src/genie/libs/parser/iosxr/tests/ShowL2vpnBridgeDomainDetail/cli/equal/golden9_expected.py

@@ -98,6 +98,7 @@
 				'evpn': {
 					'EVPN': {
 						'state': 'up',
+                        'evi': '1002',
 						'xc_id': '0x80000003',
 						'statistics': {
 							'packet_totals': {