First step towards denying clippy::integer_arithmetic (bp #15366) (#15381)

* CI: Globally deny clippy::integer_arithmetic lint

(cherry picked from commit 7035e8485c)

* Re-allow clippy::integer_arithmetic at crate-level

(cherry picked from commit 7f7370c306)

# Conflicts:
#	bench-tps/tests/bench_tps.rs

Co-authored-by: Trent Nelson <trent@solana.com>

programs/bpf_loader/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::integer_arithmetic)]
 pub mod alloc;
 pub mod allocator_bump;
 pub mod bpf_verifier;

programs/budget/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::integer_arithmetic)]
 pub mod budget_expr;
 pub mod budget_instruction;
 pub mod budget_processor;

programs/config/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::integer_arithmetic)]
 pub mod config_instruction;
 pub mod config_processor;
 pub mod date_instruction;

programs/exchange/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::integer_arithmetic)]
 pub mod exchange_instruction;
 pub mod exchange_processor;
 pub mod exchange_state;

programs/stake/src/lib.rs

@@ -1,4 +1,5 @@
 #![cfg_attr(RUSTC_WITH_SPECIALIZATION, feature(specialization))]
+#![allow(clippy::integer_arithmetic)]
 use solana_sdk::genesis_config::GenesisConfig;
 
 pub mod config;

programs/vest/src/lib.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::integer_arithmetic)]
 pub mod vest_instruction;
 pub mod vest_processor;
 pub mod vest_schedule;

programs/vote/src/lib.rs

@@ -1,4 +1,5 @@
 #![cfg_attr(RUSTC_WITH_SPECIALIZATION, feature(specialization))]
+#![allow(clippy::integer_arithmetic)]
 
 pub mod authorized_voters;
 pub mod vote_instruction;