Expand `InputType` with new variant: Bolt12 offer #3799

Job	Run time
Test sdk-bindings	3m 41s
Test sdk-cli	1m 2s
Test sdk-core	1m 24s
Test sdk-common	34s
Check SDK as Rust dependency in fresh project	2m 58s
Clippy	54s
Check flutter	1m 40s
Format	6s
Check react native	2m 5s
	14m 24s

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