fix: lint issues

ignite/pkg/cache/cache.go

@@ -94,7 +94,7 @@ func (c Cache[T]) Put(key string, value T) error {
 func (c Cache[T]) Get(key string) (val T, err error) {
 	db, err := openDB(c.storage.storagePath)
 	if err != nil {
-		return
+		return val, err
 	}
 	defer db.Close()
 

ignite/pkg/cosmosanalysis/app/app.go

@@ -220,25 +220,25 @@ func newUnexpectedTypeErr(n any) error {
 func findBasicManagerRegistrations(n ast.Node, pkgDir string, fileImports map[string]string) (packages []string, err error) {
 	callExprType, ok := n.(*ast.CallExpr)
 	if !ok {
-		return
+		return packages, err
 	}
 
 	selectorExprType, ok := callExprType.Fun.(*ast.SelectorExpr)
 	if !ok {
-		return
+		return packages, err
 	}
 
 	identExprType, ok := selectorExprType.X.(*ast.Ident)
 	if !ok {
-		return
+		return packages, err
 	}
 	basicModulePkgName := findBasicManagerPkgName(fileImports)
 	if basicModulePkgName == "" {
 		// cosmos-sdk/types/module is not imported in this file, skip
-		return
+		return packages, err
 	}
 	if identExprType.Name != basicModulePkgName || selectorExprType.Sel.Name != "NewBasicManager" {
-		return
+		return packages, err
 	}
 
 	// Node "n" defines the call to NewBasicManager, let's loop on its args to discover modules

ignite/pkg/placeholder/error.go

@@ -1,6 +1,7 @@
 package placeholder
 
 import (
+	"errors"
 	"fmt"
 	"strings"
 
@@ -18,8 +19,8 @@ type MissingPlaceholdersError struct {
 
 // Is true if both errors have the same list of missing placeholders.
 func (e *MissingPlaceholdersError) Is(err error) bool {
-	other, ok := err.(*MissingPlaceholdersError) //nolint:errorlint
-	if !ok {
+	var other *MissingPlaceholdersError
+	if !errors.As(err, &other) {
 		return false
 	}
 	if len(other.missing) != len(e.missing) {