Fixed create timer duetime

[ls-2018]

Description

If the timer is created at a previous time, we should not create it.
e.g. dueTime: "-0h0m0s"

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Unit tests passing
• End-to-end tests passing
• Extended the documentation / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]
• Specification has been updated / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]
• Provided sample for the feature / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]

[tanvigour]

LGTM

[codecov]

Codecov Report

Merging #4075 (0c070e1) into master (ef508ba) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #4075      +/-   ##
==========================================
- Coverage   63.41%   63.39%   -0.03%     
==========================================
  Files         101      101              
  Lines        9579     9581       +2     
==========================================
- Hits         6075     6074       -1     
- Misses       3031     3033       +2     
- Partials      473      474       +1     

Impacted Files	Coverage Δ
pkg/actors/actors.go	66.84% <0.00%> (-0.15%)	⬇️
pkg/grpc/server.go	34.61% <0.00%> (-0.77%)	⬇️

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[yaron2]

Thanks for your contribution @ls-2018 and welcome to the Dapr community.