addons: fix initial retry delay, double maximum limit

[tstromberg]

• The initial retry delay was accidentally set to microseconds!
• Double the maximum retry limit to 2 minutes to fight test flakes. This helps to ensure that addons are eventually deployed when requirements are met, without needing to understand what is required by each addon.

Fixes #7719

[k8s-ci-robot]

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[codecov-io]

Codecov Report

Merging #7999 into master will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master    #7999   +/-   ##
=======================================
  Coverage   36.04%   36.04%           
=======================================
  Files         144      144           
  Lines        9196     9196           
=======================================
  Hits         3315     3315           
  Misses       5480     5480           
  Partials      401      401           

Impacted Files	Coverage Δ
pkg/addons/addons.go	43.97% <0.00%> (ø)

[medyagh]

do u mind putting in the PR description what u are trying to solve by increasing the time out? and do u have any good evidence increasing the time out might fix it?

[medyagh]

approved with skepticism. merge only if confident this is not a duck tape.

[tstromberg]

Updated PR description.