Update ci_tests.yml

Author: minikin

.github/workflows/ci_tests.yml

@@ -6,13 +6,17 @@ on:
       - main
     paths-ignore:
       - '**.md'
+      - 'src/**/**.md'
+      - 'Makefiles/**'
   pull_request:
     paths-ignore:
        - '**.md'
        - 'book/**'
        - 'src/**/**.md'
+       - 'Makefiles/**'
 
 env:
+  RUST_LATEST_STABLE_VERSION: 1.65
   CARGO_TERM_COLOR: always
   RUSTFLAGS: -D warnings
   RUST_BACKTRACE: 1
@@ -39,7 +43,7 @@ jobs:
       - name: Run vit-ss tests
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"  # it says it can read the rust-toolchain file, but it fails if we omit this
+          toolchain: $$RUST_LATEST_STABLE_VERSION
       - run: |
           cargo build -p vit-servicing-station-cli -p vit-servicing-station-server
           cargo nextest run \
@@ -69,7 +73,7 @@ jobs:
       - name: Run catalyst-toolbox tests
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"  # it says it can read the rust-toolchain file, but it fails if we omit this
+          toolchain: $RUST_LATEST_STABLE_VERSION
       - run: cargo nextest run -p catalyst-toolbox -p snapshot-lib --profile ci
 
   voting_tools:
@@ -92,7 +96,7 @@ jobs:
       - name: Run voting-tools tests
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"  # it says it can read the rust-toolchain file, but it fails if we omit this
+          toolchain: $RUST_LATEST_STABLE_VERSION
       - run: cargo nextest run -p voting_tools_rs --profile ci
 
   chain-libs:
@@ -115,7 +119,7 @@ jobs:
       - name: Run chain-libs tests
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"  # it says it can read the rust-toolchain file, but it fails if we omit this
+          toolchain: $RUST_LATEST_STABLE_VERSION
       - run: cargo nextest run -p "chain-*" --profile ci
 
   jormungandr:
@@ -138,7 +142,7 @@ jobs:
       - name: Run jormungandr tests
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"  # it says it can read the rust-toolchain file, but it fails if we omit this
+          toolchain: $RUST_LATEST_STABLE_VERSION
       - run: cargo nextest run -p jormungandr --profile ci
 
   jormungandr-integration:
@@ -161,7 +165,7 @@ jobs:
       - name: Run jormungandr-integration tests
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"  # it says it can read the rust-toolchain file, but it fails if we omit this
+          toolchain: $RUST_LATEST_STABLE_VERSION
       - run: |
            cargo build -p jcli -p jormungandr -p explorer
            cargo nextest run -p jormungandr-integration-tests --profile ci
@@ -213,6 +217,6 @@ jobs:
       - name: Clippy and fmt
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"  # it says it can read the rust-toolchain file, but it fails if we omit this
+          toolchain: $RUST_LATEST_STABLE_VERSION
           components: rustfmt, clippy
       - run: scripts/check-fmt.sh