fix: log Secret name instead of all data

[zaunist]

Type of change:

• [ ] Bugfix
• [x] New feature provided
• [ ] Improve performance
• [ ] Backport patches

What this PR does / why we need it:

fix https://github.com/apache/apisix-ingress-controller/issues/1045

Pre-submission checklist:

• [x] Did you explain what problem does this PR solve? Or what new features have been added?
• [ ] Have you added corresponding test cases?
• [ ] Have you modified the corresponding document?
• [x] Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

[codecov-commenter]

Codecov Report

Merging #1216 (853b227) into master (7115cef) will increase coverage by 0.13%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1216      +/-   ##
==========================================
+ Coverage   42.64%   42.78%   +0.13%     
==========================================
  Files          73       73              
  Lines        6462     6477      +15     
==========================================
+ Hits         2756     2771      +15     
  Misses       3409     3409              
  Partials      297      297              

Impacted Files	Coverage Δ
pkg/config/config.go	66.34% <0.00%> (+1.34%)	:arrow_up:
cmd/ingress/ingress.go	80.70% <0.00%> (+2.06%)	:arrow_up:

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[tao12345666333]

sorry for delay. please resolve conflicts. thanks!

[zaunist]

@tao12345666333 PTAL, thanks.

[tao12345666333]

ping @lingsamuel for review, thanks