update ci actions, update rust edition to 2021 since our MSRV covers it

.github/workflows/build.yml

@@ -41,7 +41,7 @@ jobs:
           fancy: false
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: true
 
@@ -153,7 +153,7 @@ jobs:
 
     - name: Upload Codecov report (unit tests)
       if: contains(matrix.os, 'ubuntu-latest')
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         gcov: true
         gcov_include: src
@@ -170,7 +170,7 @@ jobs:
 
     - name: Upload Codecov report (start & connect)
       if: contains(matrix.os, 'ubuntu-latest')
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         gcov: true
         gcov_include: src
@@ -206,7 +206,7 @@ jobs:
 
     - name: Upload Codecov report (integration tests)
       if: contains(matrix.os, 'ubuntu-latest')
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
         gcov: true
         gcov_include: src
@@ -220,8 +220,7 @@ jobs:
         mv ${{ matrix.package-file }} artifacts
 
     - name: Upload Artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: ddnet-${{ matrix.os }}
         path: release/artifacts
-

.github/workflows/clang-sanitizer.yml

@@ -14,7 +14,7 @@ jobs:
     env:
       CARGO_HTTP_MULTIPLEXING: false
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: true
 

.github/workflows/clang-tidy.yml

@@ -14,7 +14,7 @@ jobs:
     env:
       CARGO_HTTP_MULTIPLEXING: false
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: true
 
@@ -32,4 +32,3 @@ jobs:
         cd clang-tidy
         cmake -G Ninja -DCMAKE_CXX_CLANG_TIDY="clang-tidy;-warnings-as-errors=*" -DCMAKE_C_CLANG_TIDY="clang-tidy;-warnings-as-errors=*" -DCMAKE_BUILD_TYPE=Debug -Werror=dev -DCMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE=. ..
         cmake --build . --config Debug --target everything -- -k 0
-

.github/workflows/codeql-analysis.yml

@@ -32,7 +32,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: true
 
@@ -48,7 +48,7 @@ jobs:
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file. 
+        # By default, queries listed here will override any specified in a config file.
         # Prefix the list here with "+" to use these queries and those in the config file.
         # queries: ./path/to/local/query, your-org/your-repo/queries@main
 

.github/workflows/rust.yml

@@ -13,7 +13,7 @@ jobs:
     env:
       CARGO_HTTP_MULTIPLEXING: false
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Cache Rust dependencies
       uses: Swatinem/rust-cache@v2
     - name: Run Rustdoc
@@ -23,7 +23,7 @@ jobs:
   rustfmt:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Run Rustfmt
       run:
         cargo fmt -- --check
@@ -41,7 +41,7 @@ jobs:
     continue-on-error: ${{ matrix.checks == 'advisories' }}
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Cache Rust dependencies
       uses: Swatinem/rust-cache@v2
     - uses: EmbarkStudios/cargo-deny-action@v1

.github/workflows/style.yml

@@ -14,7 +14,7 @@ jobs:
     env:
       CARGO_HTTP_MULTIPLEXING: false
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         submodules: true
     - name: Prepare

Cargo.toml

@@ -12,4 +12,3 @@ panic = "abort"
 [profile.release]
 lto = "thin"
 panic = "abort"
-

src/base/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "ddnet-base"
 version = "0.0.1"
-edition = "2018"
+edition = "2021"
 publish = false
 license = "Zlib"
 

src/engine/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "ddnet-engine"
 version = "0.0.1"
-edition = "2018"
+edition = "2021"
 publish = false
 license = "Zlib"
 

src/engine/shared/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "ddnet-engine-shared"
 version = "0.0.1"
-edition = "2018"
+edition = "2021"
 publish = false
 license = "Zlib"
 

src/masterping/Cargo.toml

@@ -2,7 +2,7 @@
 name = "masterping"
 version = "0.0.1"
 authors = ["heinrich5991 <heinrich5991@gmail.com>"]
-edition = "2018"
+edition = "2021"
 publish = false
 license = "Zlib"
 

src/mastersrv/Cargo.toml

@@ -2,7 +2,7 @@
 name = "mastersrv"
 version = "0.0.1"
 authors = ["heinrich5991 <heinrich5991@gmail.com>"]
-edition = "2018"
+edition = "2021"
 publish = false
 license = "Zlib"
 

src/rust-bridge/test/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "ddnet-test"
 version = "0.0.1"
-edition = "2018"
+edition = "2021"
 publish = false
 license = "Zlib"