chore: Reduces MSRV to 1.75

Author: andyquinterom

.cargo/config.toml

@@ -0,0 +1,5 @@
+[target.aarch64-apple-darwin]
+rustflags = ["-C", "link-arg=-undefined", "-C", "link-arg=dynamic_lookup"]
+
+[target.x86_64-apple-darwin]
+rustflags = ["-C", "link-arg=-undefined", "-C", "link-arg=dynamic_lookup"]

.github/workflows/test.yaml

@@ -0,0 +1,25 @@
+name: Test ixaccess R (Rust 1.65, R Latest)
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Rust 1.75
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: 1.75
+          profile: minimal
+          override: true
+
+      - name: Run cargo test
+        run: cargo test --verbose --package ixaccess-r