server config retry interval to [2min, 5min]

[YangSen-qn]

pr:
https://jira.qiniu.io/browse/KODO-16639
https://jira.qiniu.io/browse/KODO-16660

[codecov]

Codecov Report

Merging #492 (c9d7b2a) into master (46fed00) will decrease coverage by 0.31%.
The diff coverage is 35.29%.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #492      +/-   ##
============================================
- Coverage     68.46%   68.14%   -0.32%     
+ Complexity     1379     1378       -1     
============================================
  Files           106      106              
  Lines          7161     7174      +13     
  Branches       1093     1099       +6     
============================================
- Hits           4903     4889      -14     
- Misses         1474     1491      +17     
- Partials        784      794      +10     

Impacted Files	Coverage Δ
...ain/java/com/qiniu/android/collect/ReportItem.java	76.47% <0.00%> (-2.32%)	⬇️
.../main/java/com/qiniu/android/common/Constants.java	0.00% <ø> (ø)
...java/com/qiniu/android/http/dns/DnsPrefetcher.java	59.03% <ø> (ø)
.../main/java/com/qiniu/android/common/FixedZone.java	53.84% <8.33%> (+1.99%)	⬆️
...c/main/java/com/qiniu/android/common/AutoZone.java	67.30% <26.66%> (-5.70%)	⬇️
.../main/java/com/qiniu/android/common/ZonesInfo.java	75.00% <41.66%> (-7.15%)	⬇️
...storage/serverConfig/ServerConfigSynchronizer.java	49.12% <66.66%> (-1.73%)	⬇️
...src/main/java/com/qiniu/android/common/Config.java	87.50% <100.00%> (+0.54%)	⬆️
...roid/storage/serverConfig/ServerConfigMonitor.java	55.66% <100.00%> (+0.85%)	⬆️
.../com/qiniu/android/collect/UploadInfoReporter.java	62.93% <0.00%> (-3.50%)	⬇️
... and 8 more