Fix code scanning alert no. 1: Regular expression injection

[aszeszo]

Fixes https://github.com/sede-open/github-tag-action/security/code-scanning/1

To fix the problem, we need to sanitize the tagPrefix input before using it in the regular expression. The best way to do this is by using a sanitization function such as _.escapeRegExp from the lodash library. This function escapes special characters in the input that have special meaning in regular expressions, thus preventing injection attacks.

• Add the lodash library to the project if it is not already included.
• Import the _.escapeRegExp function from lodash.
• Use _.escapeRegExp to sanitize the tagPrefix input before constructing the regular expression.

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