feat: improve hal::Can::Id

[fabiangottstein]

This PR makes hal::Can::Id creation constexpr and adds defaulted equality operators.
C++ 20 is enabled to make use of default equality operators and is already enabled in amp-hal-st.

[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	0.07s
✅ CPP	clang-format	998	3	0	6.89s
✅ DOCKERFILE	hadolint	2		0	0.15s
✅ JSON	jsonlint	9		0	0.19s
✅ JSON	prettier	9	0	0	0.57s
⚠️ MARKDOWN	markdownlint	6	0	4	1.34s
⚠️ MARKDOWN	markdown-link-check	6		1	88.31s
✅ MARKDOWN	markdown-table-formatter	6	0	0	0.16s
✅ REPOSITORY	checkov	yes		no	19.22s
✅ REPOSITORY	git_diff	yes		no	0.01s
✅ REPOSITORY	grype	yes		no	9.28s
✅ REPOSITORY	ls-lint	yes		no	0.06s
✅ REPOSITORY	secretlint	yes		no	5.89s
✅ REPOSITORY	trivy	yes		no	5.93s
✅ REPOSITORY	trivy-sbom	yes		no	0.1s
✅ REPOSITORY	trufflehog	yes		no	3.52s
⚠️ SPELL	lychee	140		2	3.52s
⚠️ YAML	prettier	23	1	1	1.08s
✅ YAML	v8r	23		0	9.28s
✅ YAML	yamllint	23		0	0.44s

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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

See analysis details on SonarQube Cloud