[FEATURE] Introduce markdown formatter

[eliashaeussler]

Important

This PR requires #168 to be merged first.

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This PR introduces a new html formatter. It generates an HTML report that looks like this:

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Update check result

2 packages are outdated.

Outdated packages

Package name	Outdated version	New version
doctrine/dbal	3.1.3 ⚠️	3.9.3
symfony/http-kernel	v5.4.19 ⚠️	v5.4.44

Security Advisories

doctrine/dbal

SQL Injection in Limit Clause Generation API

• Advisory ID: PKSA-zr2w-r29k-4d9q
• Reported at: Thu, 11 Nov 21 13:30:00 +0000
• Severity: Critical
• Affected versions: >=3.0.0,<3.0.99|>=3.1.0,<3.1.4
• CVE: CVE-2021-43608

Read more

symfony/http-kernel

Prevent storing cookie headers in HttpCache

• Advisory ID: PKSA-hr4y-jwk2-1yb9
• Reported at: Wed, 01 Feb 23 08:00:00 +0000
• Severity: Medium
• Affected versions: >=2.0.0,<2.1.0|>=2.1.0,<2.2.0|>=2.2.0,<2.3.0|>=2.3.0,<2.4.0|>=2.4.0,<2.5.0|>=2.5.0,<2.6.0|>=2.6.0,<2.7.0|>=2.7.0,<2.8.0|>=2.8.0,<3.0.0|>=3.0.0,<3.1.0|>=3.1.0,<3.2.0|>=3.2.0,<3.3.0|>=3.3.0,<3.4.0|>=3.4.0,<4.0.0|>=4.0.0,<4.1.0|>=4.1.0,<4.2.0|>=4.2.0,<4.3.0|>=4.3.0,<4.4.0|>=4.4.0,<4.4.50|>=5.0.0,<5.1.0|>=5.1.0,<5.2.0|>=5.2.0,<5.3.0|>=5.3.0,<5.4.0|>=5.4.0,<5.4.20|>=6.0.0,<6.0.20|>=6.1.0,<6.1.12|>=6.2.0,<6.2.6
• CVE: CVE-2022-24894

Read more

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^{Generated by eliashaeussler/composer-update-check at Sun, 27 Oct 24 11:39:57 +0000.}

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The report can be generated like follows:

composer update-check -f markdown > update-check-report.md