.substr() is deprecated so we replace it with .slice() which works similarily but isn't deprecated

Signed-off-by: Tobias Speicher <rootcommander@gmail.com>

Fixes #311

This allows for easier reading of failures.

BREAKING CHANGE: jasmine-core was updated to the 4.1.0.

Please refer to the [release notes](https://github.com/jasmine/jasmine/blob/main/release_notes/4.0.0.md) for the complete list of changes and migration instructions.

BREAKING CHANGE: The minimum required version of Node is 12.0.0.

BREAKING CHANGE: The minimum required version of karma is 6.0.0.

# [5.0.0](v4.0.2...v5.0.0) (2022-04-12)

### Bug Fixes

* limit karma peer dependency to ^6.0.0 ([d72c124](d72c124))

### Build System

* drop Node.js 10 support ([ea691e8](ea691e8))

### Features

* **deps:** update dependencies including jasmine-core ([821f094](821f094))

### BREAKING CHANGES

* The minimum required version of karma is 6.0.0.
* The minimum required version of Node is 12.0.0.
* **deps:** jasmine-core was updated to the 4.1.0.

Please refer to the [release notes](https://github.com/jasmine/jasmine/blob/main/release_notes/4.0.0.md) for the complete list of changes and migration instructions.

Update update eslint-config-standard and downgrade eslint/eslint-plugin-promise because they are incompatible with eslint 8.x

It is not self-explanatory that grep will recognize whether the input string is a regex or not. In the case of a string it sanitizes it to turn it into a regex.

## [5.0.1](v5.0.0...v5.0.1) (2022-05-13)

### Bug Fixes

* fixes matches performance issue, github[#302](#302) ([e964fa6](e964fa6))

Allow users to define their own jasmine `specFilter`.

```js
jasmine.getEnv().configure({
  specFilter: function(spec) {
    // ...
  }
})
```

# [5.1.0](v5.0.1...v5.1.0) (2022-06-16)

### Features

* **spec-filter:** allow custom specFilter ([b73dbd6](b73dbd6))