chore: bump rust compiler version to 1.73.0 for JVM and python builds

.github/workflows/cont_integration.yml

@@ -17,10 +17,8 @@ jobs:
     strategy:
       matrix:
         rust:
-          - version: 1.67.0
+          - version: 1.73.0
             clippy: true
-          # TODO 1: Should we keep this? We'll need to pin dependencies
-          # - version: 1.61.0 # MSRV
     steps:
       - name: "Checkout"
         uses: actions/checkout@v3
@@ -50,12 +48,6 @@ jobs:
       - name: "Update toolchain"
         run: rustup update
 
-      - name: "Pin dependencies for MSRV"
-        if: matrix.rust.version == '1.61.0'
-        run: |
-          cargo update -p hashlink --precise "0.8.1"
-          cargo update -p tokio --precise "1.29.1"
-          cargo update -p flate2 --precise "1.0.26"
       - name: "Build"
         run: cargo build
 

.github/workflows/live-tests.yaml

@@ -27,8 +27,8 @@ jobs:
           distribution: temurin
           java-version: 11
 
-      - name: "Set default Rust version to 1.67.0"
-        run: rustup default 1.67.0
+      - name: "Set default Rust version to 1.73.0"
+        run: rustup default 1.73.0
 
       - name: "Build bdk-jvm library"
         run: |

.github/workflows/publish-jvm.yaml

@@ -24,8 +24,8 @@ jobs:
           distribution: temurin
           java-version: 11
 
-      - name: "Set default Rust version to 1.67.0"
-        run: rustup default 1.67.0
+      - name: "Set default Rust version to 1.73.0"
+        run: rustup default 1.73.0
 
       - name: "Install aarch64 Rust target"
         run: rustup target add aarch64-apple-darwin
@@ -54,8 +54,8 @@ jobs:
           distribution: temurin
           java-version: 11
 
-      - name: "Set default Rust version to 1.67.0"
-        run: rustup default 1.67.0
+      - name: "Set default Rust version to 1.73.0"
+        run: rustup default 1.73.0
 
       - name: "Install x86_64-pc-windows-msvc Rust target"
         run: rustup target add x86_64-pc-windows-msvc
@@ -94,8 +94,8 @@ jobs:
           distribution: temurin
           java-version: 11
 
-      - name: "Set default Rust version to 1.67.0"
-        run: rustup default 1.67.0
+      - name: "Set default Rust version to 1.73.0"
+        run: rustup default 1.73.0
 
       - name: "Build bdk-jvm library"
         run: |

.github/workflows/test-jvm.yaml

@@ -32,8 +32,8 @@ jobs:
           distribution: temurin
           java-version: 11
 
-      - name: "Set default Rust version to 1.67.0"
-        run: rustup default 1.67.0
+      - name: "Set default Rust version to 1.73.0"
+        run: rustup default 1.73.0
 
       - name: "Run JVM tests"
         run: |