fix: make CLI scripts executable

[stdlib-bot]

This PR changes the permissions of project cli scripts to be executable.

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
assert/has-search-symbol-support	$\color{green}90/90$ $color{green}+100.00%$	$\color{green}5/5$ $color{green}+100.00%$	$\color{green}1/1$ $color{green}+100.00%$	$\color{green}90/90$ $color{green}+100.00%$
assert/has-split-symbol-support	$\color{green}90/90$ $color{green}+100.00%$	$\color{green}5/5$ $color{green}+100.00%$	$\color{green}1/1$ $color{green}+100.00%$	$\color{green}90/90$ $color{green}+100.00%$
assert/has-to-primitive-symbol-support	$\color{green}90/90$ $color{green}+100.00%$	$\color{green}5/5$ $color{green}+100.00%$	$\color{green}1/1$ $color{green}+100.00%$	$\color{green}90/90$ $color{green}+100.00%$

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