Squashed commit of the following:

commit 95479c8ad744db48386a5c78e54ef8da80e9120b
Author: Chris Lane <chris@chris-allen-lane.com>
Date:   Wed Apr 28 12:26:32 2021 -0400

    chore(version): bump version to 4.2.1

commit 6956f51cae
Author: Chris Lane <chris@chris-allen-lane.com>
Date:   Wed Apr 28 12:24:21 2021 -0400

    fix(Makefile): `vendor-update`

    Update the `vendor-update` build target to run `go mod vendor` after
    updating dependencies.

commit 0aca411279
Author: Chris Lane <chris@chris-allen-lane.com>
Date:   Wed Apr 28 12:23:24 2021 -0400

    chore(deps): update dependencies

commit e847956b02
Author: Chris Lane <chris@chris-allen-lane.com>
Date:   Wed Apr 28 08:26:51 2021 -0400

    chore(deps): build updates

    - Upgrade `go` to `1.16.3`

    - Attempt to fix build errors regarding dependencies

vendor/github.com/alecthomas/chroma/lexers/v/vb.go

@@ -8,7 +8,7 @@ import (
 const vbName = `[_\w][\w]*`
 
 // VB.Net lexer.
-var VBNet = internal.Register(MustNewLexer(
+var VBNet = internal.Register(MustNewLazyLexer(
 	&Config{
 		Name:            "VB.net",
 		Aliases:         []string{"vb.net", "vbnet"},
@@ -16,7 +16,11 @@ var VBNet = internal.Register(MustNewLexer(
 		MimeTypes:       []string{"text/x-vbnet", "text/x-vba"},
 		CaseInsensitive: true,
 	},
-	Rules{
+	vbNetRules,
+))
+
+func vbNetRules() Rules {
+	return Rules{
 		"root": {
 			{`^\s*<.*?>`, NameAttribute, nil},
 			{`\s+`, Text, nil},
@@ -69,5 +73,5 @@ var VBNet = internal.Register(MustNewLexer(
 			{`(Function|Sub|Property|Class|Structure|Enum|Module|Namespace)\b`, Keyword, Pop(1)},
 			Default(Pop(1)),
 		},
-	},
-))
+	}
+}

vendor/github.com/alecthomas/chroma/lexers/v/verilog.go

@@ -6,7 +6,7 @@ import (
 )
 
 // Verilog lexer.
-var Verilog = internal.Register(MustNewLexer(
+var Verilog = internal.Register(MustNewLazyLexer(
 	&Config{
 		Name:      "verilog",
 		Aliases:   []string{"verilog", "v"},
@@ -14,7 +14,11 @@ var Verilog = internal.Register(MustNewLexer(
 		MimeTypes: []string{"text/x-verilog"},
 		EnsureNL:  true,
 	},
-	Rules{
+	verilogRules,
+))
+
+func verilogRules() Rules {
+	return Rules{
 		"root": {
 			{"^\\s*`define", CommentPreproc, Push("macro")},
 			{`\n`, Text, nil},
@@ -64,5 +68,5 @@ var Verilog = internal.Register(MustNewLexer(
 		"import": {
 			{`[\w:]+\*?`, NameNamespace, Pop(1)},
 		},
-	},
-))
+	}
+}

vendor/github.com/alecthomas/chroma/lexers/v/vhdl.go

@@ -6,7 +6,7 @@ import (
 )
 
 // VHDL lexer.
-var VHDL = internal.Register(MustNewLexer(
+var VHDL = internal.Register(MustNewLazyLexer(
 	&Config{
 		Name:            "VHDL",
 		Aliases:         []string{"vhdl"},
@@ -14,7 +14,11 @@ var VHDL = internal.Register(MustNewLexer(
 		MimeTypes:       []string{"text/x-vhdl"},
 		CaseInsensitive: true,
 	},
-	Rules{
+	vhdlRules,
+))
+
+func vhdlRules() Rules {
+	return Rules{
 		"root": {
 			{`\n`, Text, nil},
 			{`\s+`, Text, nil},
@@ -62,5 +66,5 @@ var VHDL = internal.Register(MustNewLexer(
 			{`O"[0-7_]+"`, LiteralNumberOct, nil},
 			{`B"[01_]+"`, LiteralNumberBin, nil},
 		},
-	},
-))
+	}
+}

vendor/github.com/alecthomas/chroma/lexers/v/vim.go

@@ -7,14 +7,18 @@ import (
 )
 
 // Viml lexer.
-var Viml = internal.Register(MustNewLexer(
+var Viml = internal.Register(MustNewLazyLexer(
 	&Config{
 		Name:      "VimL",
 		Aliases:   []string{"vim"},
 		Filenames: []string{"*.vim", ".vimrc", ".exrc", ".gvimrc", "_vimrc", "_exrc", "_gvimrc", "vimrc", "gvimrc"},
 		MimeTypes: []string{"text/x-vim"},
 	},
-	Rules{
+	vimlRules,
+))
+
+func vimlRules() Rules {
+	return Rules{
 		"root": {
 			{`^([ \t:]*)(py(?:t(?:h(?:o(?:n)?)?)?)?)([ \t]*)(<<)([ \t]*)(.*)((?:\n|.)*)(\6)`, ByGroups(UsingSelf("root"), Keyword, Text, Operator, Text, Text, Using(Python), Text), nil},
 			{`^([ \t:]*)(py(?:t(?:h(?:o(?:n)?)?)?)?)([ \t])(.*)`, ByGroups(UsingSelf("root"), Keyword, Text, Using(Python)), nil},
@@ -33,5 +37,5 @@ var Viml = internal.Register(MustNewLexer(
 			{`\b\w+\b`, NameOther, nil},
 			{`.`, Text, nil},
 		},
-	},
-))
+	}
+}

vendor/github.com/alecthomas/chroma/lexers/v/vue.go

@@ -8,7 +8,7 @@ import (
 // Vue lexer.
 //
 // This was generated from https://github.com/testdrivenio/vue-lexer
-var Vue = internal.Register(MustNewLexer(
+var Vue = internal.Register(MustNewLazyLexer(
 	&Config{
 		Name:      "vue",
 		Aliases:   []string{"vue", "vuejs"},
@@ -16,7 +16,11 @@ var Vue = internal.Register(MustNewLexer(
 		MimeTypes: []string{"text/x-vue", "application/x-vue"},
 		DotAll:    true,
 	},
-	Rules{
+	vueRules,
+))
+
+func vueRules() Rules {
+	return Rules{
 		"commentsandwhitespace": {
 			{`\s+`, Text, nil},
 			{`<!--`, Comment, nil},
@@ -103,5 +107,5 @@ var Vue = internal.Register(MustNewLexer(
 			{`}`, Punctuation, Pop(1)},
 			Include("root"),
 		},
-	},
-))
+	}
+}