Update dependency isomorphic-git to v1.26.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
isomorphic-git (source)	1.25.10 -> 1.26.2

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Release Notes

isomorphic-git/isomorphic-git (isomorphic-git)

### [`v1.26.2`](https://togithub.com/isomorphic-git/isomorphic-git/releases/tag/v1.26.2) [Compare Source](https://togithub.com/isomorphic-git/isomorphic-git/compare/v1.26.1...v1.26.2) ##### Bug Fixes - Revert "refactor: use `path.join` from `stdlib` instead of custom join ([#​1861](https://togithub.com/isomorphic-git/isomorphic-git/issues/1861))" ([#​1937](https://togithub.com/isomorphic-git/isomorphic-git/issues/1937)) ([59254b5](https://togithub.com/isomorphic-git/isomorphic-git/commit/59254b5b4f32e3600347cd32f34323900da67c79)) ### [`v1.26.1`](https://togithub.com/isomorphic-git/isomorphic-git/releases/tag/v1.26.1) [Compare Source](https://togithub.com/isomorphic-git/isomorphic-git/compare/v1.26.0...v1.26.1) ##### Bug Fixes - readObject when reading from packed objects with format `wrapped` ([#​1935](https://togithub.com/isomorphic-git/isomorphic-git/issues/1935)) ([85bde9d](https://togithub.com/isomorphic-git/isomorphic-git/commit/85bde9df84ae348a7be485dca6fec0931d5b1fc7)) ### [`v1.26.0`](https://togithub.com/isomorphic-git/isomorphic-git/releases/tag/v1.26.0) [Compare Source](https://togithub.com/isomorphic-git/isomorphic-git/compare/v1.25.10...v1.26.0) ##### Features - **checkout, clone, push:** Add 'onPrePush' and 'onPostCheckout' ([#​1797](https://togithub.com/isomorphic-git/isomorphic-git/issues/1797)) ([d361301](https://togithub.com/isomorphic-git/isomorphic-git/commit/d3613013b15a4b78be01d3cc3192ac4e4e659107)) - Added new docs when using bundlers ([#​1914](https://togithub.com/isomorphic-git/isomorphic-git/issues/1914)) ([fcaf7cb](https://togithub.com/isomorphic-git/isomorphic-git/commit/fcaf7cb5cff401e6a956a89453708ead7453c7a5))

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