Update dependency gettext to v0.26.2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
gettext (source)	prod	patch	0.26.1 → 0.26.2

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Release Notes

elixir-gettext/gettext (gettext)

v0.26.2

Compare Source

• Introduces warning if plural messages are defined with the same singular
  message and conflicting plural messages.
  • Improves performance by striping not required metadata when compiling the
    Gettext backend.

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
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The artifact failure details are included below:

File name: mix.lock

Command failed: install-tool elixir v1.20.4