ci: upgrade to 1.57.0

Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

Author: ojeda

.github/workflows/ci.yaml

@@ -13,7 +13,7 @@ jobs:
         arch: [arm, arm64, ppc64le, riscv64, x86_64]
         toolchain: [gcc, clang, llvm]
         config: [debug, release]
-        rustc: [1.56.0]
+        rustc: [1.57.0]
         output: [src] # [src, build]
         install: [rustup] # [rustup, standalone]
         sysroot: [common] # [common, custom]
@@ -49,7 +49,7 @@ jobs:
           - arch: arm64
             toolchain: gcc
             config: debug
-            rustc: 1.56.0
+            rustc: 1.57.0
             output: build
             install: rustup
             sysroot: custom
@@ -58,7 +58,7 @@ jobs:
           - arch: arm64
             toolchain: llvm
             config: debug
-            rustc: 1.56.0
+            rustc: 1.57.0
             output: build
             install: rustup
             sysroot: custom
@@ -67,7 +67,7 @@ jobs:
           - arch: arm64
             toolchain: llvm
             config: release
-            rustc: 1.56.0
+            rustc: 1.57.0
             output: build
             install: rustup
             sysroot: custom
@@ -76,7 +76,7 @@ jobs:
           - arch: ppc64le
             toolchain: clang
             config: release
-            rustc: 1.56.0
+            rustc: 1.57.0
             output: build
             install: standalone
             sysroot: common
@@ -85,7 +85,7 @@ jobs:
           - arch: x86_64
             toolchain: llvm
             config: debug
-            rustc: 1.56.0
+            rustc: 1.57.0
             output: build
             install: standalone
             sysroot: custom
@@ -94,7 +94,7 @@ jobs:
           - arch: x86_64
             toolchain: llvm
             config: debug
-            rustc: 1.56.0
+            rustc: 1.57.0
             output: src
             install: rustup
             sysroot: common
@@ -103,7 +103,7 @@ jobs:
           - arch: x86_64
             toolchain: llvm
             config: release
-            rustc: 1.56.0
+            rustc: 1.57.0
             output: src
             install: rustup
             sysroot: common