[19268] Replace uint64_t by 8 in alignas specifier

[rsanchez15]

Description

Some android build targets cannot translate from alignas(uint64_t) to alignas(8).

Contributor Checklist

• Commit messages follow the project guidelines.
• The code follows the style guidelines of this project.
• N/A Tests that thoroughly check the new feature have been added/Regression tests checking the bug and its fix have been added; the added tests pass locally
• N/A Any new/modified methods have been properly documented using Doxygen.
• Changes are ABI compatible.
• Changes are API compatible.
• N/A New feature has been added to the versions.md file (if applicable).
• N/A New feature has been documented/Current behavior is correctly described in the documentation.
• N/A Applicable backports have been included in the description.

Reviewer Checklist

• The PR has a milestone assigned.
• Check contributor checklist is correct.
• Check CI results: changes do not issue any warning.
• Check CI results: failing tests are unrelated with the changes.

[EduPonz]

@Mergifyio please backport 2.6.x 2.10.x 2.11.x

[mergify]

please backport 2.6.x 2.10.x 2.11.x

❌ Sorry but I didn't understand the command. Please consult the commands documentation 📚.

[EduPonz]

@Mergifyio backport 2.6.x 2.10.x 2.11.x

[mergify]

backport 2.6.x 2.10.x 2.11.x

✅ Backports have been created

• #3766 [19268] Replace uint64_t by 8 in alignas specifier (backport #3752) has been created for branch 2.6.x
• #3767 [19268] Replace uint64_t by 8 in alignas specifier (backport #3752) has been created for branch 2.10.x
• #3768 [19268] Replace uint64_t by 8 in alignas specifier (backport #3752) has been created for branch 2.11.x