pixlet: update checksum for 0.53.0 release

[stefanb]

Release workflow log https://github.com/tronbyt/pixlet/actions/workflows/main.yml

indicates, that the v0.53.0 was present on commits:

• first tronbyt/pixlet@088faaf, pushed by @tavdog
• then tronbyt/pixlet@05ec8ff = same as currenttly tagged as v0.53.0 in https://github.com/tronbyt/pixlet/releases/tag/v0.53.0, also pushed by @tavdog

Diff: tronbyt/pixlet@088faaf...05ec8ff
indicates that the only change is version number in the frontend, probably forgotten initially, not malicious.

Ref:

• https://github.com/tronbyt/pixlet/releases/tag/v0.53.0
• pixlet 0.53.0 #285627
• go 1.27.0, go@1.26 1.26.7 (new formula) #288803

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• Have you followed the guidelines for contributing?
• Have you ensured that your commits follow the commit style guide?
• Have you checked that there aren't other open pull requests for the same formula update/change?
• Have you built your formula locally with HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>?
• Is your test running fine brew test <formula>?
• Does your build pass brew audit --strict <formula> (after doing HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>)? If this is a new formula, does it pass brew audit --new <formula>?

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[github-actions]

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