rust/oss: update rustc version to 1.47 in rust-shed and eden GitHub w…

…orkflows (facebookexperimental#14)

Summary:
Pull Request resolved: facebookexperimental#14

Pull Request resolved: facebook/sapling#68

Internal codebase was updated to 1.47 with code changes that are no longer compatible with 1.44. Updating to OSS 1.47 to fix build.

Reviewed By: ikostia, mzr

Differential Revision: D24389087

fbshipit-source-id: b4152b7761b4f584e44ff5e0dfe415414ced8a94

.github/workflows/main.yml

@@ -16,7 +16,7 @@ jobs:
     - name: Install Rust Stable
       uses: actions-rs/toolchain@v1
       with:
-        toolchain: 1.44.0
+        toolchain: 1.47.0
         default: true
         profile: minimal
     - name: Install system deps
@@ -58,7 +58,7 @@ jobs:
     - name: Install Rust Stable
       uses: actions-rs/toolchain@v1
       with:
-        toolchain: 1.44.0
+        toolchain: 1.47.0
         default: true
         profile: minimal
     - name: Install system deps
@@ -100,7 +100,7 @@ jobs:
     - name: Install Rust Stable
       uses: actions-rs/toolchain@v1
       with:
-        toolchain: 1.44.0
+        toolchain: 1.47.0
         default: true
         profile: minimal
     - name: Export boost environment