fix(deps): update module github.com/rogpeppe/go-internal to v1.15.0

[elastic-renovate-prod]

This PR contains the following updates:

Package	Type	Update	Change
github.com/rogpeppe/go-internal	require	minor	v1.14.1 -> v1.15.0

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Release Notes

rogpeppe/go-internal (github.com/rogpeppe/go-internal)

v1.15.0

Compare Source

What's Changed

• hash: do not salt with Go runtime version by @​rogpeppe in https://github.com/rogpeppe/go-internal/pull/292
• testscript: reset verbose on new blocks by @​myitcv in https://github.com/rogpeppe/go-internal/pull/293
• testscript: rewind last block if it was not in error by @​myitcv in https://github.com/rogpeppe/go-internal/pull/294
• testscript: protect against no-op uses of cmp by @​mvdan in https://github.com/rogpeppe/go-internal/pull/295
• goproxytest: add Setup by @​rogpeppe in https://github.com/rogpeppe/go-internal/pull/303
• update Go, fix, add /@​latest to goproxytest by @​mvdan in https://github.com/rogpeppe/go-internal/pull/302
• internal/vcs: remove SYSTEMROOT workaround for Windows by @​mvdan in https://github.com/rogpeppe/go-internal/pull/299
• goproxytest: add overlay capability by @​rogpeppe in https://github.com/rogpeppe/go-internal/pull/304

Full Changelog: rogpeppe/go-internal@v1.14.1...v1.15.0

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