feat(core): autocomplete srn arguments on create commands

[ousamabenyounes]

The generic argument autocompleter skipped any create-verb argument sharing the command's resource name, which silently disabled completion of srn arguments (e.g. scw annotations binding create srn=<tab>). An srn argument references a foreign, pre-existing resource by its Scaleway Resource Name rather than the resource being created, so it is now exempted from that skip and completed from the resource's list verb.

Test verification (RED → GREEN)

With the fix reverted, the new test fails (RED):

        	            	Diff:
        	            	--- Expected
        	            	+++ Actual
        	            	@@ -1,5 +1,2 @@
        	            	-(core.AutocompleteSuggestions) (len=2) {
        	            	- (string) (len=16) "srn=srn:tree:oak",
        	            	- (string) (len=17) "srn=srn:tree:pine"
        	            	-}
        	            	+(core.AutocompleteSuggestions) <nil>
        	            	 
        	Test:       	TestAutocomplete/scw_test_tree_create_srn=
=== RUN   TestAutocomplete/scw_test_tree_create_srn=srn:tree:o
    autocomplete_test.go:228: 
        	Error Trace:	/home/ousama/contribute-work/scaleway__scaleway-cli/core/autocomplete_test.go:142
        	Error:      	Not equal: 
        	            	expected: core.AutocompleteSuggestions{"srn=srn:tree:oak"}
        	            	actual  : core.AutocompleteSuggestions(nil)
        	            	
        	            	Diff:
        	            	--- Expected
        	            	+++ Actual
        	            	@@ -1,4 +1,2 @@
        	            	-(core.AutocompleteSuggestions) (len=1) {
        	            	- (string) (len=16) "srn=srn:tree:oak"
        	            	-}
        	            	+(core.AutocompleteSuggestions) <nil>
        	            	 
        	Test:       	TestAutocomplete/scw_test_tree_create_srn=srn:tree:o
--- FAIL: TestAutocomplete (0.00s)
    --- FAIL: TestAutocomplete/scw_test_tree_create_srn= (0.00s)
    --- FAIL: TestAutocomplete/scw_test_tree_create_srn=srn:tree:o (0.00s)
=== RUN   TestAutocompleteArgs
--- PASS: TestAutocompleteArgs (0.00s)
=== RUN   TestAutocompleteProfiles
--- PASS: TestAutocompleteProfiles (0.00s)
=== RUN   TestAutocompleteDeprecatedCommand
--- PASS: TestAutocompleteDeprecatedCommand (0.00s)
FAIL
FAIL	github.com/scaleway/scaleway-cli/v2/core	0.006s
FAIL

With the fix applied, the test passes (GREEN):

GREEN attempt 1/2 (exit 0)
=== RUN   TestAutocomplete
=== RUN   TestAutocomplete/scw_test_tree_create_srn=
=== RUN   TestAutocomplete/scw_test_tree_create_srn=srn:tree:o
--- PASS: TestAutocomplete (0.00s)
    --- PASS: TestAutocomplete/scw_test_tree_create_srn= (0.00s)
    --- PASS: TestAutocomplete/scw_test_tree_create_srn=srn:tree:o (0.00s)
=== RUN   TestAutocompleteArgs
--- PASS: TestAutocompleteArgs (0.00s)
=== RUN   TestAutocompleteProfiles
--- PASS: TestAutocompleteProfiles (0.00s)
=== RUN   TestAutocompleteDeprecatedCommand
--- PASS: TestAutocompleteDeprecatedCommand (0.00s)
PASS
ok  	github.com/scaleway/scaleway-cli/v2/core	0.006s

Full local suite

Command: export PATH="/home/ousama/.local/share/go-1.26.6/go/bin:$PATH" GOTOOLCHAIN=auto; go build ./... && go test ./core/...

ok  	github.com/scaleway/scaleway-cli/v2/core	(cached)
ok  	github.com/scaleway/scaleway-cli/v2/core/human	(cached)

Fix #5807