Backport bitcoin#14897 and bitcoin#15834 and modify it to work with PIVX messages#2963

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Duddino wants to merge 10 commits intoPIVX-Project:masterfrom

Duddino:tx_request_backport

Commits on Feb 4, 2025

Change in transaction pull scheduling to prevent InvBlock-related attacks

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Duddino
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Fix bug around transaction requests

sdaftuar
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Duddino
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Cherrypick: Generalize TX request code

codablock
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Duddino
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Make interval and timeout dependend on INV type

codablock
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Duddino
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Commits on Feb 13, 2025

Commits on Feb 14, 2025

net: Use mockable time for tx download

codablock
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Duddino
committed

Commits on Feb 20, 2025

Update tests to the new mocktime and RequestObject
Duddino
committed