bench: refactor random number generation in stats/base/dists/t

[sagar7162]

---

type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes. report:

• task: lint_filenames status: passed
• task: lint_editorconfig status: passed
• task: lint_markdown status: na
• task: lint_package_json status: na
• task: lint_repl_help status: na
• task: lint_javascript_src status: na
• task: lint_javascript_cli status: na
• task: lint_javascript_examples status: na
• task: lint_javascript_tests status: na
• task: lint_javascript_benchmarks status: passed
• task: lint_python status: na
• task: lint_r status: na
• task: lint_c_src status: na
• task: lint_c_examples status: na
• task: lint_c_benchmarks status: na
• task: lint_c_tests_fixtures status: na
• task: lint_shell status: na
• task: lint_typescript_declarations status: passed
• task: lint_typescript_tests status: na
• task: lint_license_headers status: passed ---

Resolves #4988

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Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/t/cdf	$\color{red}234/236$ $\color{green}+0.00%$	$\color{red}28/29$ $\color{green}+0.00%$	$\color{green}3/3$ $\color{green}+0.00%$	$\color{red}234/236$ $\color{green}+0.00%$
stats/base/dists/t/ctor	$\color{green}436/436$ $\color{green}+0.00%$	$\color{green}27/27$ $\color{green}+0.00%$	$\color{green}16/16$ $\color{green}+0.00%$	$\color{green}436/436$ $\color{green}+0.00%$
stats/base/dists/t/kurtosis	$\color{green}181/181$ $\color{green}+0.00%$	$\color{green}10/10$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}181/181$ $\color{green}+0.00%$
stats/base/dists/t/logcdf	$\color{green}242/242$ $\color{green}+0.00%$	$\color{green}29/29$ $\color{green}+0.00%$	$\color{green}3/3$ $\color{green}+0.00%$	$\color{green}242/242$ $\color{green}+0.00%$
stats/base/dists/t/mode	$\color{green}161/161$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}161/161$ $\color{green}+0.00%$
stats/base/dists/t/quantile	$\color{green}229/229$ $\color{green}+0.00%$	$\color{green}23/23$ $\color{green}+0.00%$	$\color{green}3/3$ $\color{green}+0.00%$	$\color{green}229/229$ $\color{green}+0.00%$
stats/base/dists/t/skewness	$\color{green}169/169$ $\color{green}+0.00%$	$\color{green}8/8$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}169/169$ $\color{green}+0.00%$
stats/base/dists/t/stdev	$\color{green}174/174$ $\color{green}+0.00%$	$\color{green}10/10$ $\color{green}+0.00%$	$\color{green}2/2$ $\color{green}+0.00%$	$\color{green}174/174$ $\color{green}+0.00%$

The above coverage report was generated for the changes in this PR.

[sagar7162]

@kgryte @anandkaranubc

In lib/node_modules/@stdlib/stats/base/dists/t/ctor/benchmark/benchmark.js, there is a benchmark case defined for logpf.

Since the Student's t-distribution is continuous, it does not implement logpf (Probability Mass Function), which causes the benchmark to crash with TypeError: dist.logpf is not a function.

I think it should be logpdf and should fix the issue.

[anandkaranubc]

Right @sagar7162. There is a typo in here. Thanks for catching that!

Feel free to make that change in this PR only, to fix the lint error :)