Upgrade rocksdb to 0.22.0, bump MSRV to 1.66 (#3383)

Allow easier packaging for Debian

.github/workflows/rust.yml

@@ -273,11 +273,11 @@ jobs:
 
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65.0"
+          toolchain: "1.66.0"
           override: true
 
       - name: check if README matches MSRV defined here
-        run: grep '1.65.0' src/core/README.md
+        run: grep '1.66.0' src/core/README.md
 
       - name: Check if it builds properly
         uses: actions-rs/cargo@v1

src/core/Cargo.toml

@@ -11,7 +11,7 @@ edition = "2021"
 readme = "README.md"
 autoexamples = false
 autobins = false
-rust-version = "1.65.0"
+rust-version = "1.66.0"
 
 [lib]
 name = "sourmash"
@@ -109,6 +109,6 @@ wasm-bindgen-test = "0.3.42"
 
 ### These crates don't compile on wasm
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-rocksdb = { version = "0.21.0", optional = true }
+rocksdb = { version = "0.22.0", optional = true }
 [target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
 criterion = "0.5.1"

src/core/README.md

@@ -38,4 +38,4 @@ Development happens on github at
 
 ## Minimum supported Rust version
 
-Currently the minimum supported Rust version is 1.65.0.
+Currently the minimum supported Rust version is 1.66.0.