tried changing github workflow for make idl issue

Author: Bengt Lofgren

.github/workflows/solana.yml

@@ -80,7 +80,10 @@ jobs:
           solana-cli-version: "1.18.15"
           anchor-version: "0.30.1"
       - name: Set default Rust toolchain
-        run: rustup default stable
+        run: |
+          rustup toolchain install 1.75.0
+          rustup default 1.75.0
+          rustup component add rustfmt clippy
         working-directory: ./solana
       - name: Git Submodule Update
         run: |
@@ -109,7 +112,10 @@ jobs:
           solana-cli-version: "1.18.15"
           anchor-version: "0.30.1"
       - name: Set default Rust toolchain
-        run: rustup default stable
+        run: |
+          rustup toolchain install 1.75.0
+          rustup default 1.75.0
+          rustup component add rustfmt clippy
         working-directory: ./solana
       - name: Git Submodule Update
         run: |
@@ -138,7 +144,10 @@ jobs:
           solana-cli-version: "1.18.15"
           anchor-version: "0.30.1"
       - name: Set default Rust toolchain
-        run: rustup default stable
+        run: |
+          rustup toolchain install 1.75.0
+          rustup default 1.75.0
+          rustup component add rustfmt clippy
         working-directory: ./solana
       - name: Git Submodule Update
         run: |