feat: changed BoundedString::copy to copy up to length-pos characters

[daantimmer]

The standard library's std::string::copy has the following behaviour:

Copies a substring [pos, pos + count) to character string pointed to by dest.
If the requested substring lasts past the end of the string, or if count == npos,
the copied substring is [pos, size()).

The current behaviour of BoundedString::copy is to error when pos+count > length which is different from the standard string copy behaviour.

This change aligns BoundedString::copy with the above behaviour.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

OpenSSF Scorecard

Package	Version	Score	Details

Scanned Files

[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	12		0	0.08s
✅ CPP	clang-format	994	3	0	6.69s
✅ DOCKERFILE	hadolint	2		0	0.15s
✅ JSON	jsonlint	9		0	0.19s
✅ JSON	prettier	9	0	0	0.66s
⚠️ MARKDOWN	markdownlint	6	0	4	1.24s
⚠️ MARKDOWN	markdown-link-check	6		1	21.56s
✅ MARKDOWN	markdown-table-formatter	6	0	0	0.24s
✅ REPOSITORY	checkov	yes		no	20.4s
✅ REPOSITORY	git_diff	yes		no	0.05s
✅ REPOSITORY	grype	yes		no	9.53s
✅ REPOSITORY	ls-lint	yes		no	0.07s
✅ REPOSITORY	secretlint	yes		no	5.85s
✅ REPOSITORY	trivy	yes		no	5.62s
✅ REPOSITORY	trivy-sbom	yes		no	0.08s
✅ REPOSITORY	trufflehog	yes		no	3.31s
⚠️ SPELL	lychee	140		2	3.15s
⚠️ YAML	prettier	23	1	1	0.86s
✅ YAML	v8r	23		0	10.3s
✅ YAML	yamllint	23		0	0.45s

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Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

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