libenvpp: add version 1.4.2

[toge]

Summary

Changes to recipe: libenvpp/1.4.2

Motivation

1.4.2 supports MinGW.

Details

ph3at/libenvpp@v1.4.1...v1.4.2

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• Read the contributing guidelines
• Checked that this PR is not a duplicate: list of PRs by recipe
• Tested locally with at least one configuration using a recent version of Conan

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 1 (b481c2952fb0de875290a01118fac1ba3c70bd58):

• libenvpp/1.4.2:
  Built 10 packages out of 11 (All logs)

• libenvpp/1.4.1:
  Built 10 packages out of 11 (All logs)

• libenvpp/1.4.0:
  Built 10 packages out of 11 (All logs)

• libenvpp/1.3.0:
  Built 10 packages out of 11 (All logs)

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Conan v2 pipeline ✔️

Note: Conan v2 builds are now mandatory. Please read our discussion about it.

All green in build 1 (b481c2952fb0de875290a01118fac1ba3c70bd58):

• libenvpp/1.4.1:
  Built 5 packages out of 10 (All logs)

• libenvpp/1.3.0:
  Built 5 packages out of 10 (All logs)

• libenvpp/1.4.2:
  Built 5 packages out of 10 (All logs)

• libenvpp/1.4.0:
  Built 5 packages out of 10 (All logs)

[ErniGH]

LGTM