v2.1: Fix - SVM account_loader tests (backport of #3448) (#3520)

Fix - SVM account_loader tests (#3448)

* Fixes test_load_transaction_accounts_program_account_executable_bypass.

* Fixes test_load_transaction_accounts_data_sizes().

* Removes test_load_transaction_accounts_program_account_not_found_but_loaded().

(cherry picked from commit 7403549)

Co-authored-by: Alexander Meißner <[email protected]>

Author: mergify[bot]

Cargo.lock

@@ -81,6 +81,7 @@ solana-svm = { path = ".", features = ["dev-context-only-utils"] }
 solana-svm-conformance = { workspace = true }
 solana-transaction-status = { workspace = true }
 solana-version = { workspace = true }
+solana_rbpf = { workspace = true }
 spl-token-2022 = { workspace = true, features = ["no-entrypoint"] }
 test-case = { workspace = true }
 tokio = { workspace = true, features = ["full"] }