Update git-model to match dugite-no-gpl

Upstream dugite has changed its GitError enum [1], which became part
of `dugite-no-gpl` after its uplift. @theia/git has it own GitError enum [2],
that I believe needs to be aligned with `dugite's`.

This commit atttempts to align our version of that enum. After this update,
the @theia/git unit tests now pass.

[1] https://github.com/theia-ide/dugite/blob/main/lib/errors.ts#L2-L63
   starting at index 16 a new item was inserted, offsetting from that point.
   New entries were also added towards the end, offsetting the GitHub errors.
   finally new entries were added after the GitHub section.
[2] https://github.com/eclipse-theia/theia/blob/86fe42854196b1c3cea90b95840acae3e0f00061/packages/git/src/common/git-model.ts#L421-L467

Signed-off-by: Marc Dumais <marc.dumais@ericsson.com>

packages/git/src/common/git-model.ts

@@ -435,35 +435,50 @@ export enum GitError {
     RevertConflicts = 13,
     EmptyRebasePatch = 14,
     NoMatchingRemoteBranch = 15,
-    NothingToCommit = 16,
-    NoSubmoduleMapping = 17,
-    SubmoduleRepositoryDoesNotExist = 18,
-    InvalidSubmoduleSHA = 19,
-    LocalPermissionDenied = 20,
-    InvalidMerge = 21,
-    InvalidRebase = 22,
-    NonFastForwardMergeIntoEmptyHead = 23,
-    PatchDoesNotApply = 24,
-    BranchAlreadyExists = 25,
-    BadRevision = 26,
-    NotAGitRepository = 27,
-    CannotMergeUnrelatedHistories = 28,
-    LFSAttributeDoesNotMatch = 29,
-    BranchRenameFailed = 30,
-    PathDoesNotExist = 31,
-    InvalidObjectName = 32,
-    OutsideRepository = 33,
-    LockFileAlreadyExists = 34,
+    NoExistingRemoteBranch = 16,
+    NothingToCommit = 17,
+    NoSubmoduleMapping = 18,
+    SubmoduleRepositoryDoesNotExist = 19,
+    InvalidSubmoduleSHA = 20,
+    LocalPermissionDenied = 21,
+    InvalidMerge = 22,
+    InvalidRebase = 23,
+    NonFastForwardMergeIntoEmptyHead = 24,
+    PatchDoesNotApply = 25,
+    BranchAlreadyExists = 26,
+    BadRevision = 27,
+    NotAGitRepository = 28,
+    CannotMergeUnrelatedHistories = 29,
+    LFSAttributeDoesNotMatch = 30,
+    BranchRenameFailed = 31,
+    PathDoesNotExist = 32,
+    InvalidObjectName = 33,
+    OutsideRepository = 34,
+    LockFileAlreadyExists = 35,
+    NoMergeToAbort = 36,
+    LocalChangesOverwritten = 37,
+    UnresolvedConflicts = 38,
+    GPGFailedToSignData = 39,
+    ConflictModifyDeletedInBranch = 40,
     // GitHub-specific error codes
-    PushWithFileSizeExceedingLimit = 35,
-    HexBranchNameRejected = 36,
-    ForcePushRejected = 37,
-    InvalidRefLength = 38,
-    ProtectedBranchRequiresReview = 39,
-    ProtectedBranchForcePush = 40,
-    ProtectedBranchDeleteRejected = 41,
-    ProtectedBranchRequiredStatus = 42,
-    PushWithPrivateEmail = 43
+    PushWithFileSizeExceedingLimit = 41,
+    HexBranchNameRejected = 42,
+    ForcePushRejected = 43,
+    InvalidRefLength = 44,
+    ProtectedBranchRequiresReview = 45,
+    ProtectedBranchForcePush = 46,
+    ProtectedBranchDeleteRejected = 47,
+    ProtectedBranchRequiredStatus = 48,
+    PushWithPrivateEmail = 49,
+    // End of GitHub-specific error codes
+    ConfigLockFileAlreadyExists = 50,
+    RemoteAlreadyExists = 51,
+    TagAlreadyExists = 52,
+    MergeWithLocalChanges = 53,
+    RebaseWithLocalChanges = 54,
+    MergeCommitNoMainlineOption = 55,
+    UnsafeDirectory = 56,
+    PathExistsButNotInRef = 57
 }
 
 export interface GitFileBlame {

yarn.lock

@@ -4139,13 +4139,6 @@ check-error@^1.0.2:
   resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
   integrity sha512-BrgHpW9NURQgzoNyjfq0Wu6VFO6D7IZEmJNdtgNqpzGG8RuNFHt2jQxWlAs4HMe119chBnv+34syEZtc6IhLtA==
 
-checksum@^0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/checksum/-/checksum-0.1.1.tgz#dc6527d4c90be8560dbd1ed4cecf3297d528e9e9"
-  integrity sha512-xWkkJpoWQ6CptWw2GvtoQbScL3xtvGjoqvHpALE7B0tSHxSw0ex0tlsKOKkbETaOYGBhMliAyscestDyAZIN9g==
-  dependencies:
-    optimist "~0.3.5"
-
 chokidar@3.5.3, chokidar@^3.5.1:
   version "3.5.3"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.5.3.tgz#1cf37c8707b932bd1af1ae22c0432e2acd1903bd"