build: Bump MSRV to 1.82.0

We are having complains from Rust 1.86.0-beta.1 (f0cb41030 2025-02-17)'
clippy, which suggests us to replace `repeat().take()` with
`repeat_n()`. While `repeat_n()` is stablized in Rust 1.82.0.

Update image to 20250307-2 because MSRV in Dockerfile is updated.

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
Signed-off-by: Ruoqing He <heruoqing@iscas.ac.cn>

.github/workflows/build.yaml

@@ -15,7 +15,7 @@ jobs:
           - stable
           - beta
           - nightly
-          - "1.77.0"
+          - "1.82.0"
         target:
           - x86_64-unknown-linux-gnu
           - x86_64-unknown-linux-musl

.github/workflows/docker-image.yaml

@@ -41,7 +41,7 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           # generate Docker tags based on the following events/attributes
           tags: |
-            type=raw,value=20250228-0
+            type=raw,value=20250307-2
             type=sha
 
       - name: Build and push

.github/workflows/preview-riscv64.yaml

@@ -24,7 +24,7 @@ jobs:
           fetch-depth: 0
 
       - name: Install Rust toolchain
-        run: /opt/scripts/exec-in-qemu.sh rustup default 1.77.0
+        run: /opt/scripts/exec-in-qemu.sh rustup default 1.82.0
 
       - name: Build ${{ matrix.module }} Module (kvm)
         run: /opt/scripts/exec-in-qemu.sh cargo rustc --locked -p ${{ matrix.module }} --no-default-features --features "kvm" -- -D warnings -D clippy::undocumented_unsafe_blocks -W clippy::assertions_on_result_states

.github/workflows/release.yaml

@@ -45,7 +45,7 @@ jobs:
           target: ${{ matrix.platform.target }}
           args: ${{ matrix.platform.args  }}
           strip: true
-          toolchain: "1.77.0"
+          toolchain: "1.82.0"
       - name: Copy Release Binaries
         if: github.event_name == 'create' && github.event.ref_type == 'tag'
         shell: bash