Update Solana to 1.16.1 and Rust to 1.69 (#4592)

#### Problem

The 1.16 Solana crates are out, but SPL is still on 1.14 and needs the
new functionality.

#### Solution

Update the:

* rust version to 1.69
* nightly to 2023-04-19
* solana tools to 1.16.1
* solana crates to 1.16.1
* borsh to 0.10

And fix:

* new clippy warnings
* deprecated warnings in the new solana crates

Author: joncinque

.github/workflows/pull-request-token.yml

@@ -204,7 +204,7 @@ jobs:
 
       - name: Set env vars
         run: |
-          echo "RUST_STABLE_VERSION=1.66.1" >> $GITHUB_ENV
+          echo "RUST_STABLE_VERSION=1.69.0" >> $GITHUB_ENV
           source ci/rust-version.sh
           echo "RUST_STABLE=$rust_stable" >> $GITHUB_ENV
           source ci/solana-version.sh
@@ -231,9 +231,9 @@ jobs:
 
       - name: Build and test token-2022 twoxtx (TEMPORARY)
         run: |
+          cargo build-sbf --manifest-path token/program-2022/Cargo.toml
+          cargo build-sbf --manifest-path instruction-padding/program/Cargo.toml
           ./token/twoxtx-setup.sh
-          ./token/twoxtx-solana/cargo-build-sbf --manifest-path token/program-2022/Cargo.toml
-          ./token/twoxtx-solana/cargo-build-sbf --manifest-path instruction-padding/program/Cargo.toml
           ./token/twoxtx-solana/cargo-test-sbf --manifest-path token/program-2022-test/Cargo.toml -- --nocapture
 
   js-test:

.github/workflows/pull-request.yml

@@ -99,7 +99,7 @@ jobs:
         uses: actions-rs/[email protected]
         with:
           crate: cargo-audit
-          version: 0.16.0 # TODO use latest once repo uses Rust v1.63+
+          version: 0.17.6
 
       - name: Run Cargo Audit
         run: ./ci/do-audit.sh

Anchor.toml

@@ -1,5 +1,5 @@
 anchor_version = "0.24.2"
-solana_version = "1.14.12"
+solana_version = "1.16.1"
 
 [workspace]
 members = [