Add Rust 1.75 to PR template

Author: jayvdb

Diff for: .github/PULL_REQUEST_TEMPLATE.md

@@ -5,8 +5,8 @@
 ### Checklist
 - [ ] Formatted code using `cargo fmt --all`
 - [ ] Linted code using clippy
-  - [ ] with reqwest feature: `cargo clippy --manifest-path influxdb/Cargo.toml --all-targets --no-default-features --features serde,derive,reqwest-client-rustls -- -D warnings`
-  - [ ] with surf feature: `cargo clippy --manifest-path influxdb/Cargo.toml --all-targets --no-default-features --features serde,derive,hyper-client -- -D warnings`
+  - [ ] with reqwest feature: `cargo +1.75 clippy --manifest-path influxdb/Cargo.toml --all-targets --no-default-features --features serde,derive,reqwest-client-rustls -- -D warnings`
+  - [ ] with surf feature: `cargo clippy +1.75 --manifest-path influxdb/Cargo.toml --all-targets --no-default-features --features serde,derive,hyper-client -- -D warnings`
 - [ ] Updated README.md using `cargo doc2readme -p influxdb --expand-macros`
 - [ ] Reviewed the diff. Did you leave any print statements or unnecessary comments?
 - [ ] Any unfinished work that warrants a separate issue captured in an issue with a TODO code comment

Diff for: .github/workflows/rust.yml

@@ -24,6 +24,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      # When changing this Rust version, please also update .github/PULL_REQUEST_TEMPLATE.md
+      # so contributors know which version of Rust to use for clippy checks.
       - uses: dtolnay/[email protected]
         with:
           components: clippy