chore(deps): pin dependencies (#4)

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This PR contains the following updates:

| Package | Type | Update | Change | OpenSSF |
|---|---|---|---|---|
| @​amxx/graphprotocol-utils | dependencies | pin | [`^1.1.0` ->
`1.1.0`](https://renovatebot.com/diffs/npm/@amxx%2fgraphprotocol-utils/1.1.0/1.1.0)
| |
| @​graphprotocol/graph-cli | dependencies | pin | [`^0.68.5` ->
`0.68.5`](https://renovatebot.com/diffs/npm/@graphprotocol%2fgraph-cli/0.68.5/0.68.5)
| |
| @​graphprotocol/graph-ts | dependencies | pin | [`^0.33.0` ->
`0.33.0`](https://renovatebot.com/diffs/npm/@graphprotocol%2fgraph-ts/0.33.0/0.33.0)
| |
| [@openzeppelin/contracts](https://openzeppelin.com/contracts/)
([source](https://togithub.com/OpenZeppelin/openzeppelin-contracts)) |
dependencies | pin | [`^5.0.2` ->
`5.0.2`](https://renovatebot.com/diffs/npm/@openzeppelin%2fcontracts/5.0.2/5.0.2)
| [![OpenSSF
Scorecard](https://api.securityscorecards.dev/projects/github.com/OpenZeppelin/openzeppelin-contracts/badge)](https://securityscorecards.dev/viewer/?uri=github.com/OpenZeppelin/openzeppelin-contracts)
|

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to pin your dependencies.

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subgraph/package-lock.json

@@ -10,10 +10,10 @@
     "author": "SettleMint <hello@settlemint.com>",
     "license": "MIT",
     "dependencies": {
-      "@amxx/graphprotocol-utils": "^1.1.0",
-      "@graphprotocol/graph-cli": "^0.68.5",
-      "@graphprotocol/graph-ts": "^0.33.0",
-      "@openzeppelin/contracts": "^5.0.2",
+      "@amxx/graphprotocol-utils": "1.1.0",
+      "@graphprotocol/graph-cli": "0.68.5",
+      "@graphprotocol/graph-ts": "0.33.0",
+      "@openzeppelin/contracts": "5.0.2",
       "@openzeppelin/subgraphs": "0.1.8-5"
     }
   }