Make ConfigsExportServiceTest support windows

[shoothzj]

What's the purpose of this PR

Make ConfigsExportServiceTest support windows.

[nobodyiam]

Should we also change line 174?

    FileInputStream fileInputStream = new FileInputStream("/tmp/apollo.zip");

[shoothzj]

@nobodyiam My fault, fixed.

[nobodyiam]

LGTM

[codecov]

Codecov Report

Merging #4765 (362a5b8) into master (a76521e) will increase coverage by 0.08%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4765      +/-   ##
============================================
+ Coverage     47.27%   47.35%   +0.08%     
- Complexity     1655     1657       +2     
============================================
  Files           346      346              
  Lines         10662    10662              
  Branches       1058     1058              
============================================
+ Hits           5040     5049       +9     
+ Misses         5316     5307       -9     
  Partials        306      306              

Impacted Files	Coverage Δ
...m/ctrip/framework/apollo/biz/entity/AccessKey.java	58.33% <ø> (ø)
...a/com/ctrip/framework/apollo/biz/entity/Audit.java	52.94% <ø> (ø)
...com/ctrip/framework/apollo/biz/entity/Cluster.java	58.82% <ø> (ø)
.../com/ctrip/framework/apollo/biz/entity/Commit.java	5.55% <ø> (ø)
...p/framework/apollo/biz/entity/GrayReleaseRule.java	100.00% <ø> (ø)
...va/com/ctrip/framework/apollo/biz/entity/Item.java	86.36% <ø> (ø)
...m/ctrip/framework/apollo/biz/entity/Namespace.java	61.11% <ø> (ø)
...rip/framework/apollo/biz/entity/NamespaceLock.java	25.00% <ø> (ø)
...m/ctrip/framework/apollo/biz/entity/Privilege.java	8.33% <ø> (ø)
...com/ctrip/framework/apollo/biz/entity/Release.java	82.14% <ø> (ø)
... and 14 more

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