fix: ipv6 address validity issue

[ty-ci-robot]

What this PR does / why we need it:

• Fix: When the ipv6 address is fd00:015d::1, but in the pod it is fd00:15d::1,
• in this case, using "ip -6 r | grep 'default via fd00:015d::1'" does not retrieve the content, so os/exec will return an error when executed

Which issue(s) this PR fixes: #860 #850

Special notes for your reviewer:

make sure your commit is signed off

[codecov[bot]]

Codecov Report

Merging #893 (37cc945) into main (31de7ee) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #893   +/-   ##
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  Coverage   81.75%   81.75%           
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  Files           8        8           
  Lines         592      592           
=======================================
  Hits          484      484           
  Misses         89       89           
  Partials       19       19           

Flag	Coverage Δ
unittests	81.75% <ø> (ø)

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[weizhoublue]

这个 方案不能解决根本问题 ipv6 地址 有很多场景 都会导致 简写 该问题的本质 应该是 把 设置 和 生效值 都 取出后，进行 ipv6 全写展开后，进行 比较

[sonarqubecloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

No Coverage information
0.0% Duplication