Pvf refactor execute worker errors follow up (#4071)

follow up of https://github.com/paritytech/polkadot-sdk/pull/2604
closes https://github.com/paritytech/polkadot-sdk/pull/2604

- [x] take relevant changes from Marcin's PR 
- [x] extract common duplicate code for workers (low-hanging fruits)

~Some unpassed ci problems are more general and should be fixed in
master (see https://github.com/paritytech/polkadot-sdk/pull/4074)~

Proposed labels: **T0-node**, **R0-silent**, **I4-refactor**

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kusama address: FZXVQLqLbFV2otNXs6BMnNch54CFJ1idpWwjMb3Z8fTLQC6

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Co-authored-by: s0me0ne-unkn0wn <48632512+s0me0ne-unkn0wn@users.noreply.github.com>

polkadot/node/core/pvf/common/Cargo.toml

@@ -10,14 +10,16 @@ license.workspace = true
 workspace = true
 
 [dependencies]
-cfg-if = "1.0"
 cpu-time = "1.0.0"
 futures = "0.3.30"
 gum = { package = "tracing-gum", path = "../../../gum" }
 libc = "0.2.152"
+nix = { version = "0.27.1", features = ["resource", "sched"] }
 thiserror = { workspace = true }
 
-parity-scale-codec = { version = "3.6.1", default-features = false, features = ["derive"] }
+parity-scale-codec = { version = "3.6.1", default-features = false, features = [
+	"derive",
+] }
 
 polkadot-parachain-primitives = { path = "../../../../parachain" }
 polkadot-primitives = { path = "../../../../primitives" }
@@ -34,7 +36,6 @@ sp-tracing = { path = "../../../../../substrate/primitives/tracing" }
 
 [target.'cfg(target_os = "linux")'.dependencies]
 landlock = "0.3.0"
-nix = { version = "0.27.1", features = ["sched"] }
 
 [target.'cfg(all(target_os = "linux", target_arch = "x86_64"))'.dependencies]
 seccompiler = "0.4.0"