fix(deps): switch out from latest versions in dependencies

[wszydlak]

fixes #464

Summary

Due to uncontrolled updates of third party dependencies used by webfont i've prepared this PR to switch out from latest versions in dependencies section in package.json.
Using latest versions is very risky and may break webfont at any time (which happend in #464)

Proposed changes

This PR brings the following changes:

• Update dependencies to use specified by semver range versions
• Upgrade svgicons2svgfont
• Update hashes in tests

Related issue

#464

Dependencies added/removed (if applicable)

• svgicons2svgfont (update patch)
• svg2ttf (update major)

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Testing

• I have added or updated tests that prove my fix is effective or that my feature works (if applicable)
  • Unit tests (updated hashes)

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Checklist

• I have added corresponding labels to this PR (like bug, enhancement...);
• My commits follow the Conventional Commits 1.0 Guidelines;
• My code follows the style guidelines of this project;
• I have performed a self-review of my own code;
• I have mapped technical debts found on my changes;
• I have made changes to the documentation (if applicable);
• My changes generate no new warnings or errors;

[jimmyandrade]

LGTM

[jimmyandrade]

@wszydlak thank you so much.

webfont@11.2.17 released at npm.