Update Dockerfile comment and update curl usage (#4873)

## Motivation
Updated comment in Dockerfile for which version of ubuntu we support.

`--retry-all-errors` is only added to the `curl` options if a version is used that supports it.

## Changes
- Update dockerfile comment
- Update curl usage

## Test Plan
n/a

## TODO
<!-- This section should be removed when all items are complete -->
- [x] Explain motivation or link existing issue(s)
- [x] Test changes and document test plan
- [x] Update documentation as needed

## DevOps Notes
<!-- Please uncheck these items as applicable to make DevOps aware of changes that may affect releases -->
- [x] This PR does not require configuration changes (e.g., environment variables, GitHub secrets, VM resources)
- [x] This PR does not affect public APIs
- [x] This PR does not rely on a new version of external services (PoET, elasticsearch, etc.)
- [x] This PR does not make changes to log messages (which monitoring infrastructure may rely on)

Dockerfile

@@ -1,5 +1,4 @@
-# go-spacemesh needs at least ubuntu 20.04 (because gpu-post and post-rs are linked to glibc 2.31)
-# newer versions of ubuntu should work as well, so far only 22.04 has been tested
+# go-spacemesh needs at least ubuntu 22.04. newer versions of ubuntu might work as well, but are untested
 FROM ubuntu:22.04 AS linux
 ENV DEBIAN_FRONTEND noninteractive
 ENV SHELL /bin/bash

Makefile-libs.Inc

@@ -74,11 +74,17 @@ $(BINDIR_POSTRS_SETUP_LIBS): $(PROJ_DIR)$(POSTRS_SETUP_ZIP)
 	unzip -o -j $(PROJ_DIR)$(POSTRS_SETUP_ZIP) -d $(dir $@) $(notdir $@)
 	touch $@
 
+CURL_OPTIONS = --retry 10 --retry-max-time 120
+CURL_VERSION = $(shell curl --version 2>/dev/null | head -n 1 | cut -d' ' -f2)
+ifeq ($(shell expr "$(CURL_VERSION)" \>= 7.71.0),1)
+	CURL_OPTIONS := $(CURL_OPTIONS) --retry-all-errors
+endif
+
 $(PROJ_DIR)$(POSTRS_SETUP_ZIP):
-	curl -sSL --retry 10 --retry-max-time 120 --retry-all-errors $(POSTRS_SETUP_URL_ZIP) -o $(PROJ_DIR)$(POSTRS_SETUP_ZIP)
+	curl -sSL $(CURL_OPTIONS) $(POSTRS_SETUP_URL_ZIP) -o $(PROJ_DIR)$(POSTRS_SETUP_ZIP)
 
 $(BIN_DIR)$(POSTRS_PROFILER_BIN):
-	curl -sSL --retry 10 --retry-max-time 120 --retry-all-errors $(POSTRS_PROFILER_URL) -o $(PROJ_DIR)$(POSTRS_PROFILER_ZIP)
+	curl -sSL $(CURL_OPTIONS) $(POSTRS_PROFILER_URL) -o $(PROJ_DIR)$(POSTRS_PROFILER_ZIP)
 	unzip -o -j $(PROJ_DIR)$(POSTRS_PROFILER_ZIP) -d $(BIN_DIR)
 
 get-postrs-lib: $(PROJ_DIR)$(POSTRS_SETUP_ZIP) $(BINDIR_POSTRS_SETUP_LIBS)