fix(deps): migrate go-github to v92

Use the v92 module path. NewClient now returns an error and takes
options, so pass WithAuthToken and WithHTTPClient and handle the error.
Qualify the page field because the issue options embed two structs that
have one. Replace the deprecated github.Ptr with the builtin new.

internal/github/client.go

@@ -11,7 +11,7 @@ import (
 	"time"
 
 	"github.com/bradleyfalzon/ghinstallation/v2"
-	"github.com/google/go-github/v68/github"
+	"github.com/google/go-github/v92/github"
 
 	"github.com/lukaszraczylo/git-velocity/internal/config"
 	"github.com/lukaszraczylo/git-velocity/internal/domain/models"
@@ -50,10 +50,14 @@ type Client struct {
 // NewClient creates a new GitHub client with the appropriate authentication
 func NewClient(ctx context.Context, cfg *config.Config) (*Client, error) {
 	var gh *github.Client
+	var err error
 
 	// Determine authentication method
 	if cfg.HasGithubToken() {
-		gh = github.NewClient(nil).WithAuthToken(cfg.Auth.GithubToken)
+		gh, err = github.NewClient(github.WithAuthToken(cfg.Auth.GithubToken))
+		if err != nil {
+			return nil, fmt.Errorf("failed to create GitHub client: %w", err)
+		}
 	} else if cfg.HasGithubApp() {
 		// GitHub App authentication
 		privateKey, err := cfg.GetGithubAppPrivateKey()
@@ -71,7 +75,10 @@ func NewClient(ctx context.Context, cfg *config.Config) (*Client, error) {
 			return nil, fmt.Errorf("failed to create GitHub App transport: %w", err)
 		}
 
-		gh = github.NewClient(&http.Client{Transport: itr})
+		gh, err = github.NewClient(github.WithHTTPClient(&http.Client{Transport: itr}))
+		if err != nil {
+			return nil, fmt.Errorf("failed to create GitHub client: %w", err)
+		}
 	} else {
 		return nil, fmt.Errorf("no authentication method configured")
 	}
@@ -528,7 +535,7 @@ func (c *Client) FetchIssues(ctx context.Context, owner, repo string, since, unt
 
 	fetcher := &DateFilteredFetcher[*github.Issue, models.Issue]{
 		FetchFn: func(ctx context.Context, page int) ([]*github.Issue, *github.Response, error) {
-			opts.Page = page
+			opts.ListOptions.Page = page
 			var issues []*github.Issue
 			var resp *github.Response
 			err := c.retryWithBackoff(ctx, "list issues", func() error {
@@ -561,8 +568,8 @@ func (c *Client) FetchIssueComments(ctx context.Context, owner, repo string, sin
 	cacheKey := fmt.Sprintf("issue_comments:%s/%s:%v:%v", owner, repo, since, until)
 
 	opts := &github.IssueListCommentsOptions{
-		Sort:      github.Ptr("created"),
-		Direction: github.Ptr("desc"),
+		Sort:      new("created"),
+		Direction: new("desc"),
 		ListOptions: github.ListOptions{
 			PerPage: 100,
 		},

internal/github/fetcher.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/google/go-github/v68/github"
+	"github.com/google/go-github/v92/github"
 )
 
 // DateFilterResult represents the result of date filtering