Fix arista eos show version for containerlab ceos (#2169)

* Fix arista eos show version for containerlab ceos

* Add arista ceos containerlab test data

---------

Co-authored-by: Michael Bear <38406045+mjbear@users.noreply.github.com>

Author: gsnider2195

ntc_templates/templates/arista_eos_show_version.textfsm

@@ -17,6 +17,7 @@ Start
   ^Architecture:\s+\S+
   ^Internal\s+build\s+(version|ID):\s+\S+
   ^Image\s+(format\s+version|optimization):\s+\S+
+  ^Kernel\s+version:\s+\S+
   ^Uptime:\s+${UPTIME}
   ^Total\s+memory:\s+${TOTAL_MEMORY}
   ^Free\s+memory:\s+${FREE_MEMORY} -> Record

tests/arista_eos/show_version/arista_eos_show_version_clab.raw

@@ -0,0 +1,18 @@
+Arista cEOSLab
+Hardware version: 
+Serial number: 
+Hardware MAC address: 001c.7312.b056
+System MAC address: 001c.7312.b056
+
+Software image version: 4.32.1F-37265360.4321F (engineering build)
+Architecture: x86_64
+Internal build version: 4.32.1F-37265360.4321F
+Internal build ID: 5cc97ff0-08f5-438e-9b7c-c94dea3f44a6
+Image format version: 1.0
+Image optimization: None
+
+Kernel version: 6.6.87.2-microsoft-standard-WSL2
+
+Uptime: 1 hour and 16 minutes
+Total memory: 16378596 kB
+Free memory: 8609248 kB

tests/arista_eos/show_version/arista_eos_show_version_clab.yml

@@ -0,0 +1,10 @@
+---
+parsed_sample:
+  - free_memory: "8609248"
+    hw_version: ""
+    image: "4.32.1F-37265360.4321F"
+    model: "cEOSLab"
+    serial_number: ""
+    sys_mac: "001c.7312.b056"
+    total_memory: "16378596"
+    uptime: "1 hour and 16 minutes"