fix: CI

Author: Shubham Chaturvedi

.github/workflows/ci_examples_java.yml

@@ -45,6 +45,12 @@ jobs:
       - uses: actions/checkout@v3
         with:
           submodules: recursive
+      
+      - name: Setup Java 8
+        uses: actions/setup-java@v4
+        with:
+          distribution: "corretto"
+          java-version: 8
 
       - name: Setup Java ${{ matrix.java-version }}
         uses: actions/setup-java@v4

.github/workflows/library_rust_tests.yml

@@ -54,6 +54,7 @@ jobs:
       - name: Setup Rust Toolchain for GitHub CI
         uses: actions-rust-lang/[email protected]
         with:
+          toolchain: 1.86.0
           components: rustfmt
       # uncomment this after Rust formatter works
       # - name: Rustfmt Check