chore(deps): update dependency opentofu/opentofu to v1.9.1

[renovate]

This PR contains the following updates:

Package	Update	Change
opentofu/opentofu	patch	v1.9.0 -> v1.9.1
opentofu/opentofu	patch	1.9.0 -> 1.9.1

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Release Notes

opentofu/opentofu (opentofu/opentofu)

v1.9.1

Compare Source

BUG FIXES:

• Provider used in import is correctly identified. (#​2336)
• plantimestamp() now returns unknown value during validation (#​2397)
• Syntax error in the required_providers block does not panic anymore, but yields "syntax error" (2344)
• Fix the error message when default value of a complex variable is containing a wrong type (2394)
• Changing Go version to 1.22.11 in order to fix CVE-2024-45336 and CVE-2024-45341 (#​2438)
• Fix the way OpenTofu downloads a module that is sourced from a GitHub branch containing slashes in the name. (2396)
• Changing Go version to 1.22.12 in order to fix CVE-2025-22866 and CVE-2024-45341 (#​2438)

Full Changelog: opentofu/opentofu@v1.9.0...v1.9.1

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