Cannot parse string which consists of numbers and multiple dots

Description

fkYAML throws an exception while parsing a string scalar which consists of numbers and multiple dots such as semantic versions.
This only occurs if such a scalar is not surrounded with single/double quotes.

Reproduction steps

Try parse the following:

semver: 1.2.3

Expected vs. actual results

Expected: No error.
Actual: An exception is thrown with the following message:

parse_error: Multiple decimal points found in a token. (at line 0, column 11)

Minimal code example

int main()
{
    using namespace fkyaml::literals::yaml_literals;
    fkyaml::node n = "semver: 1.2.3"_yaml;
    return 0;
}

Error messages

parse_error: Multiple decimal points found in a token. (at line 0, column 11)

Compiler and operating system

GCC 11.4.0 on Ubuntu 22.04 LTS

Library version

develop HEAD

Validation

[X] The bug also occurs if the latest version from the develop branch is used.
[X] I can successfully compile and run the unit tests.

fktn-k / fkYAML

Cannot parse string which consists of numbers and multiple dots #242