Update Pixel API implementation

[gudmdharalds]

Updates the Pixel API implementation:

1. Resolve a bug in the implementation, whereby counters specified for multiple groups would not be sent for all of them.
2. Use generic HTTP API function instead of calling cURL directly.

Requires #318.

TODO:

• Keep statistics on run time length (short, medium, long).
• Keep statistics on number of runs.
• Send statistics just before shutting down (needed in case of fatal error).
• Fix a bug with Pixel API integration.
• Use vipgoci_http_api_fetch_url() instead of calling cURL directly.
• Add to, or update, Scan run detail report as applicable
• Add/update tests -- unit and/or integrated
  • Add test for vipgoci_run_time_length_determine()
  • Add test for vipgoci_send_stats_to_pixel_api()
• Ensure PHPDoc comments are up to date for functions added or altered
• Changelog entry (for VIP) [ Changelog for version 1.3.3 #312 ]
• Public documentation changes
• Check status of automated tests

[wpcomvip-vipgoci-bot]

No issues were found to report when scanning latest commit (commit-ID: 8dfc2d9)

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This bot provides automated PHP linting and PHPCS scanning. For more information about the bot and available customizations, see our documentation.

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Scan run detail

Software versions vip-go-ci version: 1.3.2 PHP runtime version for vip-go-ci: 8.1.11 PHP runtime for linting: PHP 8.1: 8.1.11 PHP runtime version for PHPCS: 7.4.32 PHPCS version: 3.7.1 PHP runtime version for SVG scanner: 7.4.32 Options file (.vipgoci_options) Options file enabled: true Configurable options: skip-execution skip-draft-prs lint-modified-files-only phpcs phpcs-severity phpcs-sniffs-include phpcs-sniffs-exclude report-no-issues-found review-comments-sort review-comments-include-severity post-generic-pr-support-comments review-comments-sort scan-details-msg-include svg-checks autoapprove autoapprove-php-nonfunctional-changes Options altered: phpcs-severityset to1 phpcs-sniffs-includeset toGeneric.PHP.DisallowShortOpenTag, Squiz.PHP.CommentedOutCode phpcs-sniffs-excludeset toWordPress.Security.EscapeOutput, WordPress.PHP.DevelopmentFunctions, WordPress.WP.AlternativeFunctions, WordPress.PHP.DiscouragedPHPFunctions, WordPress.Files.FileName, Squiz.Commenting.FileComment, Generic.PHP.Syntax skip-draft-prsset to

PHP lint options PHP lint files enabled: true Lint modified files only: true Directories not PHP linted: None SVG configuration SVG scanning enabled: true Auto-approval configuration Auto-approvals enabled: true Non-functional changes auto-approved: true Auto-approved file-types: css csv eot gif gz ico ini jpeg jpg json less map md mdown mo mp4 otf pcss pdf po pot png sass scss styl ttf txt woff woff2 yml

PHPCS configuration PHPCS scanning enabled: true PHPCS severity level: 1 Standard(s) used: PHPCompatibility PHPCompatibilityParagonieRandomCompat PHPCompatibilityParagonieSodiumCompat VariableAnalysis WordPress Runtime set: testVersion 8.1- Custom sniffs included: Generic.PHP.DisallowShortOpenTag Squiz.PHP.CommentedOutCode Custom sniffs excluded: WordPress.Security.EscapeOutput WordPress.PHP.DevelopmentFunctions WordPress.WP.AlternativeFunctions WordPress.PHP.DiscouragedPHPFunctions WordPress.Files.FileName Squiz.Commenting.FileComment Generic.PHP.Syntax Directories not PHPCS scanned: tests/unit WPScan API configuration WPScan API scanning enabled: false