Replace Matrix package for expm package

[ntorresd]

No description provided.

[github-actions]

This pull request:

• Adds 1 new dependencies (direct and indirect)
• Adds 1 new system dependencies
• Removes 0 existing dependencies (direct and indirect)
• Removes 0 existing system dependencies

Reach out on slack (#code-review or #help channels) to double check if there are base R alternatives to the new dependencies.

(Note that results may be inaccurate if you branched from an outdated version of the target branch.)

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.16%. Comparing base (cf5ad5e) to head (54b50fa).

Files with missing lines	Patch %	Lines
R/simulate_serosurvey.R	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##              main     #297      +/-   ##
===========================================
- Coverage   100.00%   95.16%   -4.84%     
===========================================
  Files            6        6              
  Lines         1097     1097              
===========================================
- Hits          1097     1044      -53     
- Misses           0       53      +53     

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[github-actions]

This pull request:

• Adds 1 new dependencies (direct and indirect)
• Adds 1 new system dependencies
• Removes 0 existing dependencies (direct and indirect)
• Removes 0 existing system dependencies

Reach out on slack (#code-review or #help channels) to double check if there are base R alternatives to the new dependencies.

(Note that results may be inaccurate if you branched from an outdated version of the target branch.)