Use --workspace where --all is deprecated

Most `cargo` commands that support `--all` to affect the entire
workspace rather than a single package have deprecated it in favor
of `--workspace` and treat them as synonyms. The major exception
(at least as relevant to this repository) is `cargo fmt`, which
recognizes `--all` and not `--workspace`.

This replaces `--all` with `--workspace` in `cargo check`,
`cargo doc`, and `cargo nextest` commands in a CI workflow and the
`justfile`. All these subcommands have deprecated `--all` in favor
of `--workspace`, and document this in relevant `--help` output.

(Other major subcommands that recommend `--workspace` over its
deprecated `--all` alias include `cargo build` and `cargo test`,
but there are currently no occurrences of such commands with
`--all` in this repository.)

.github/workflows/ci.yml

@@ -67,14 +67,14 @@ jobs:
           brew install tree openssl gnu-sed
       - name: "cargo check default features"
         if: startsWith(matrix.os, 'windows')
-        run: cargo check --all --bins --examples
+        run: cargo check --workspace --bins --examples
       - uses: taiki-e/install-action@v2
         with:
           tool: nextest
       - name: "Test (nextest)"
         env:
           GIX_TEST_CREATE_ARCHIVES_EVEN_ON_CI: 1
-        run: cargo nextest run --all --no-fail-fast
+        run: cargo nextest run --workspace --no-fail-fast
       - name: Doctest
         run: cargo test --doc
       - name: Check that tracked archives are up to date

justfile

@@ -38,7 +38,7 @@ clippy-fix:
 
 # Build all code in suitable configurations
 check:
-    cargo check --all
+    cargo check --workspace
     cargo check --no-default-features --features small
     # assure compile error occurs
     if cargo check --features lean-async 2>/dev/null; then false; else true; fi
@@ -146,8 +146,8 @@ check:
 
 # Run cargo doc on all crates
 doc $RUSTDOCFLAGS="-D warnings":
-    cargo doc --all --no-deps --features need-more-recent-msrv
-    cargo doc --features=max,lean,small --all --no-deps --features need-more-recent-msrv
+    cargo doc --workspace --no-deps --features need-more-recent-msrv
+    cargo doc --features=max,lean,small --workspace --no-deps --features need-more-recent-msrv
 
 # run all unit tests
 unit-tests: