Update oj requirement from 3.16.15 to 3.16.16

[dependabot]

Updates the requirements on oj to permit the latest version.

Changelog

Sourced from oj's changelog.

3.16.16 - 2026-03-13

• Not closed arrays and objects are reported corrected in the usual parser.

3.16.15 - 2026-02-05

• Fixed by putting the ostruct dependency back until a better way is found to conditionally include it.

3.16.14 - 2026-02-04

• Fixed SSE issue #989.

• Removed ostruct dependency.

• Removed generic object JSON gem tests.

3.16.13 - 2025-12-05

• Fixed rails encoding for Hash and Array subclasses.

3.16.12 - 2025-10-29

• Fixed dump realloc bug that occurred when using the compat mode dump options.

3.16.11 - 2025-05-29

• Fixed range encoding with the :circular option

3.16.10 - 2025-02-24

• Changed oj_parser_type to be non-static.

• Changed ARM versions to used Neon instructions thanks to @​samyron.

3.16.9 - 2024-12-28

• Fixed Oj::Parser create_id size issue #931.

• Changed parser to be more optimized (PR from @​Watson1978)

3.16.8 - 2024-12-14

• Fixed StreamWriter to write to non-file IO thanks to @​jscheid.

3.16.7 - 2024-11-01

• Changed string_writer_as_json to allow multiple arguments.

• Fixed Global variable registration added to mimic_json and rails code thanks to @​byroot.

... (truncated)

Commits

• f8e8af1 Release prep
• 780818f Cleanup
• 7abe5db Fix new parser stack consistency error (#997)
• c7fd915 Specify static and OJ_TARGET_SSE42 on _mm_sum_epu8 (#996)
• 77f407d Add an ARM Neon string scanning implementation. (#994)
• See full diff in compare view

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