Fix zizmor warning in release workflow

[adamtheturtle]

Use YAML block scalar syntax for replace field to fix zizmor warning.

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Note

Refactors Release workflow to use a YAML block scalar for the changelog update.

• In release.yml, changes gha-find-replace replace value to a block scalar (|-) to correctly inject the version and underline with a trailing newline when updating CHANGELOG.rst

^{Written by Cursor Bugbot for commit 6aab002. This will update automatically on new commits. Configure here.}

[cursor]

Block scalar doesn't interpret \n as newline characters

The change from double-quoted string to YAML block scalar (|-) syntax breaks the replacement. In double-quoted strings, \n is interpreted as a newline character. In literal block scalars, \n is kept as literal backslash-n text. The find pattern on line 60 still uses double-quoted syntax (actual newlines), but the replace content now contains literal \n characters instead of newlines. This will insert malformed text into CHANGELOG.rst instead of properly formatted lines.