ci: Mark espup as glibc_pre_2_34_incompat

```
+ espup --version
espup: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by espup)
espup: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.32' not found (required by espup)
espup: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by espup)
```

tools/ci/tool-list.sh

@@ -14,14 +14,14 @@ glibc_pre_2_35_incompat=(
 glibc_pre_2_34_incompat=(
   "${glibc_pre_2_35_incompat[@]}"
   cargo-spellcheck
+  espup
   wait-for-them
   xbuild
 )
 # version `GLIBC_2.31' not found
 glibc_pre_2_31_incompat=(
   "${glibc_pre_2_34_incompat[@]}"
   cargo-sort
-  espup
 )
 # version `GLIBC_2.28' not found
 glibc_pre_2_28_incompat=(