try g's rust toolchain fix to CI rust issues

anihamde · anihamde · commit 1a17c6618ed5 · 2023-02-02T17:27:36.000-05:00
diff --git a/pyth-sdk-solana/test-contract/rust-toolchain b/pyth-sdk-solana/test-contract/rust-toolchain
@@ -0,0 +1,5 @@
+
+# This is only used for tests
+[toolchain]
+channel = "1.66.1"
+profile = "minimal"
