Change quoted nextest --all arg to --workspace

This changes the deprecated `--all` option for `cargo nextest` to
the recommended (and equivelent) `--workspace` option, in quoted
default argument values for recipes in `justfile`.

Other occurrences of `--all` to `cargo nextest`, and other commands
for which `--all` is a deprecated alias of `--workspace`, were
changed to `--workspace` in 14d472d (#1654), but I had missed
these.

Author: EliahKagan

justfile

@@ -245,10 +245,10 @@ audit:
     cargo deny check advisories bans licenses sources
 
 # run tests with `cargo nextest` (all unit-tests, no doc-tests, faster)
-nextest *FLAGS="--all":
+nextest *FLAGS="--workspace":
     cargo nextest run {{ FLAGS }}
 
-summarize EXPRESSION="all()": (nextest "--all --run-ignored all --no-fail-fast --status-level none --final-status-level none -E '" EXPRESSION "'")
+summarize EXPRESSION="all()": (nextest "--workspace --run-ignored all --no-fail-fast --status-level none --final-status-level none -E '" EXPRESSION "'")
 
 # run nightly rustfmt for its extra features, but check that it won't upset stable rustfmt
 fmt: