Fixes missing viewing keys for shielded sync in integration tests

Author: grarco

crates/tests/src/integration/masp.rs

@@ -3992,6 +3992,8 @@ fn masp_tx_expiration_first_invalid_block_height() -> Result<()> {
                 "--expiration",
                 #[allow(clippy::disallowed_methods)]
                 &DateTimeUtc::now().to_string(),
+                "--viewing-keys",
+                AA_VIEWING_KEY,
                 "--output-folder-path",
                 tempdir.path().to_str().unwrap(),
                 "--dump-tx",
@@ -4173,6 +4175,8 @@ fn masp_tx_expiration_first_invalid_block_height_with_fee_payment() -> Result<()
                 "--expiration",
                 #[allow(clippy::disallowed_methods)]
                 &DateTimeUtc::now().to_string(),
+                "--viewing-keys",
+                AA_VIEWING_KEY,
                 "--output-folder-path",
                 tempdir.path().to_str().unwrap(),
                 "--dump-tx",
@@ -4330,6 +4334,8 @@ fn masp_tx_expiration_last_valid_block_height() -> Result<()> {
                 "--expiration",
                 #[allow(clippy::disallowed_methods)]
                 &DateTimeUtc::now().to_string(),
+                "--viewing-keys",
+                AA_VIEWING_KEY,
                 "--output-folder-path",
                 tempdir.path().to_str().unwrap(),
                 "--dump-tx",