[PWGEM] Update SkimmerPrimaryElectronFromDalitzEE - #17654

Use lowerCamelCase for names of configurables and use the same name for the struct member as for the JSON string. (Declare the type and names on the same line.)

Name of a workflow file must match the name of the main struct in it (without the PWG prefix). (Class implementation files should be in "Core" directories.)

Specify task name only when it cannot be derived from the struct name. Only append to the default name.

Device names skimmer-primary-electron-from-dalitzee and skimmer-primary-electron-from-dalitz-e-e generated from the specified task name skimmer-primary-electron-from-dalitzee and from the struct name skimmerPrimaryElectronFromDalitzEE, respectively, differ in hyphenation. Consider fixing capitalisation of the struct name to SkimmerPrimaryElectronFromDalitzee and removing TaskName.

Use UpperCamelCase for names of O2 columns and matching lowerCamelCase names for their getters.

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

Avoid magic numbers in expressions. Assign the value to a clearly named variable or constant.

Use constant references for non-modified iterators in range-based for loops.

Avoid hard-coded PDG codes. Use named values from PDG_t or o2::constants::physics::Pdg instead.

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: thollander/actions-comment-pull-request@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

To tolerate certain issues in a directory, add a line with the test name in "o2linter_config".